practice and homework lesson 11.2 answer key

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Go Math! 5 Student Edition, Grade: 5 Publisher: Houghton Mifflin Harcourt

Go math 5 student edition, title : go math 5 student edition, publisher : houghton mifflin harcourt, isbn : 547352042, isbn-13 : 9780547352046, use the table below to find videos, mobile apps, worksheets and lessons that supplement go math 5 student edition., textbook resources.

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Into Math Grade 7 Module 11 Lesson 2 Answer Key Derive and Apply Formulas for Surface Areas of Cubes and Right Prisms

We included  HMH Into Math Grade 7 Answer Key PDF   Module 11 Lesson 2 Derive and Apply Formulas for Surface Areas of Cubes and Right Prisms to make students experts in learning maths.

HMH Into Math Grade 7 Module 11 Lesson 2 Answer Key Derive and Apply Formulas for Surface Areas of Cubes and Right Prisms

I Can derive and apply the formulas for surface area of any right prism.

Spark Your Learning

Turn and Talk What is the difference between area and surface area? Answer: 180 inches Explanation: Surface area: A A = 2( l  x w + w x h x h x  l ) A = 2(10×14 + 14×5 + 5×10) A = 2(140 + 70 + 50) A = 2(260) A = 520 in 2 Volume: V = ( l ).(w).(h) V = 10 x 14 x 5 = 700 in 3

Build Understanding

B. Are any of the faces congruent? If so, which ones? Answer: Base and base are congruent Front and Back are congruent

C. What is the shape of the two bases? What is their combined area? Answer: Rectangle

D. What is the combined area of the front and back faces? Answer: 1050 in 2 Explanation: Area A = length x width A = 2(15 x 35 ) A = 2(525) = 1050 in 2

E. What is the combined area of the left and right faces? Answer: 540 in 2 Explanation: Area A = length x width A = 2(15 x 18 ) A = 2(270) = 540 in 2

F. How can you find the total surface area of the toy box? What is this value? Answer: 2850 in 2 Explanation: Dimensions:  l = 35 inches, w = 15 inches, h = 18 inches Surface area: A A = 2( l  x w + w x h x h x  l ) A = 2(35 × 15 + 15 x 18 + 18 x 35) A = 2(525 + 270 + 630) A = 2(1425) A = 2850 in 2

Turn and Talk How could you change the surface area formula for a cube to make it simpler? Answer: 6s 2 Explanation: s is the side of a cube. Surface area cube of same length, width and height= 2sxs + 2sxs + 2sxs = 6s 2 Surface area = 2lw + 2wh + 2hl l = s, w = s, h = s Since s x s is the area of a Base, replace s x s with B: 2B + 2s.s + 2s.s. Both parts of the expression 2s.s + 2s.s contain an h, so factor it out: 2B + s(2s + 2s). Since 2s+ 2s represents the P of the base, replace 2s + 2s with P: Surface Area = 2s.s + Ps Step It Out

The surface area of a right prism is S = 2B + Ph, where B is the base area, P is the base perimeter, and h is the height of the prism.

Check Understanding

Question 1. A couch cushion needs to be covered with fabric. The dimensions of the cushion are 1.5 feet long by 1.5 feet wide by 0.5 foot high. What is the least amount of fabric that will be needed to cover the couch cushion? Answer: 7.5 in 2 Explanation: length 1.5 feet, width 1.5 feet and height = 0.5 feet Surface area: A A = 2( l  x w + w x h x h x  l ) A = 2(1.5×1.5 + 1.5 x 0.5 + 0.5×1.5) A = 2(2.25 + 0.75 + 0.75) A = 2(3.75) A = 7.5 in 2

Question 3. A photographer’s darkroom needs a new coat of black paint on all surfaces of the room, including the ceiling and the floor. The room is a cube with edge length 11 feet. How much surface area must be painted? Answer: 726 sq ft Explanation: 6 s x s = 6 (11 x 11) = 6 x 121 = 726 sq ft or B= 121 sq ft P = 44 ft S = 2B + Ph S = 2 (121) + 44 (11) = 242 + 484 = 726 sq feet

On Your Own

Question 4. Lily is using wrapping paper to cover a box with dimensions 7 centimeters by 10 centimeters by 5 centimeters. What is the least amount of paper Lily will need to cover the box? Answer: 310 square cm. Explanation: The surface area of a rectangular prism is S = 2B + Ph, where B is the base area, P is the base perimeter, and h is the height of the prism. length l = 7cm, width w = 10 cm and height h = 5 cm P = perimeter of base = 2(7+10) = 34 cm B area of base = 7 x 10 = 70 sq cm S = 2B + Ph S = 2 (70) + 34 (5) S = 140 + 170 S = 310 square cm.

Question 5. Use Structure Gavin is making a scale replica of a tent for his social studies project. The replica is in the shape of a triangular prism. It has an isosceles triangle base with side lengths 6 inches, 5 inches, and 5 inches. The height of the triangle is 4 inches, and the depth of the tent is 7 inches. How much fabric will Gavin need to make the outside of the replica, including the “floor”? Answer: 88 square in. Explanation: The surface area of a triangular prism is S = 2B + Ph, where B is the base area, P is the base perimeter, and h is the height of the prism h= 4in; P = perimeter of base = 6 + 5 + 5 = 16 in B area of base = 1/2(4 x 6) = 12 sq in S = 2B + Ph S = 2 (12) + 16 (4) S = 24 + 64 S = 88 square in.

Find the surface area of each prism.

I’m in a Learning Mindset!

How does using the formulas for surface area of right prisms help me find surface area more efficiently? Answer: Surface area = Bl + Ph B base area and L is length P is the perimeter of the base h is the height of the triangle the formulas for surface area of right prisms help me find surface area more efficiently and easy

Lesson 11.2 More Practice/Homework

Question 2. Sue is upholstering a rectangular ottoman that measures 21 centimeters by 18 centimeters by 15 centimeters. What will be the total square centimeters of fabric that Sue must use to cover all faces of the ottoman? Answer: 1926 square cm. Explanation: The surface area of a rectangular prism is S = 2B + Ph, where B is the base area, P is the base perimeter, and h is the height of the prism length l = 21cm, width w = 18 cm and height h = 15 cm P = perimeter of base = 2(21 + 18) = 2 x 39 = 78 cm B area of base = 21 x 18 = 378 sq cm S = 2B + Ph S = 2 (378) + 78 (15) S = 756 + 1170 S = 1926 square cm.

For Problems 4-7, find the surface area of each prism. Round to the nearest tenth if necessary.

Question 9. Mark bought a jewelry box in the shape of a cube. The jewelry box has edge lengths of 6 inches. What is the total surface area of the jewelry box? (A) 36 in 2 (B) 108 in 2 (C) 216 in 2 (D) 1,296 in 2 Answer: Option (C) Explanation: Surface area of cube = 6 x side x side = 6 x 6 x 6 = 216 in 2

Question 10. Find the surface area of a rectangular prism with length of 4.7 inches, width of 6.4 inches, and height of 8.2 inches. Round to the nearest tenth. Answer: 242.2 in 2 Explanation: length 4.7 inches, width of 6.4 inches, and height of 8.2 inches Surface area: A A = 2( l  x w + w x h x h x  l ) A = 2(4.7 x 6.4 + 6.4 x 8.2 + 8.2 x 4.7) A = 2(30.08 +52.48 + 38.54) A = 2(121.1) A = 242.2 in 2

Question 11. Find the surface area of a regular hexagonal prism with side length 4.2 millimeters, height 3.9 millimeters, and base area of approximately 45.8 square millimeters. Round to the nearest tenth. Answer: 189.88 square millimeters. The surface area of a regular hexagonal prism is S = 2B + Ph, where B is the base area, P is the base perimeter, and h is the height of the prism P = perimeter of base = 6 x 4.2 = 25.2 square millimeters B area of base = 45.8 square millimeters height = 3.9 millimeters S = 2B + Ph S = 2 (45.8) + 25.2 (3.9) S = 91.26 + 98.28 S = 189.88 square millimeters.

Spiral Review

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Go Math Grade 1 Chapter 11 Answer Key Pdf Three-Dimensional Geometry

Go Math Grade 1 Chapter 11 Answer Key Pdf: Students can learn to think, strategize and solve problems from Go Math First Grade Answer Key Chapter 11 rather than just obtain answers. Learn, Practice, Succeed using the 1st Grade Go Math Chapter 11 Three Dimensional Geometry Solutions. HMH Go Math Grade 1 Answer Key provides a full complement of preparation resources all in one place making your toggling between home and classroom seamless. Our experts use the same models and problem-solving methods for the grade to grade so that maths concepts stay with you and develop enduring knowledge.

Three-Dimensional Geometry Go Math Grade 1 Chapter 11 Answer Key Pdf

Go Math Grade 1 Chapter 11 Three Dimensional Geometry includes Questions from Chapter Tests, Review Tests, Assessments, Lessons, Homework & Practice, etc. To help you understand the concepts better we have provided step-by-step solutions for all the Problems in Go Math 1st Grade Solutions. In fact, all the Go Math Grade 1 Ch 11 Three Dimensional Geometry Answers are aligned as per the Go Math 1st Grade Textbooks. Begin your preparation without any delay and attempt the actual exam with confidence.

Three Dimensional Geometry

• Three–Dimensional Geometry Show What You Know – Page 630
• Three–Dimensional Geometry Vocabulary Builder – Page 631
• Three–Dimensional Geometry Game: Shape Match Bingo – Page 632
• Three–Dimensional Geometry Vocabulary Game – Page(632A-632D)

Lesson: 1 Three-Dimensional Shapes

• Lesson 11.1 Three-Dimensional Shapes – Page(633-638)
• Three-Dimensional Shapes Homework & practice 11.1 – Page(637-638)

Lesson: 2 Combine Three-Dimensional Shapes

• Lesson 11.2 Combine Three-Dimensional Shapes – Page(639-644)
• Combine Three-Dimensional Shapes Homework & Practice 11.2 – Page(643-644)

Lesson: 3 Make New Three-Dimensional Shapes

• Lesson 11.3 Make New Three-Dimensional Shapes – Page(645-650)
• Make New Three-Dimensional Shapes Homework & Practice 11.3 – Page(649-650)

Mid-Chapter Check Point

• Three–Dimensional Geometry Mid-Chapter Check Point – Page 648

Lessson: 4 Problem Solving • Take Apart Three-Dimensional Shapes

• Lessson 11.4 Problem Solving • Take Apart Three-Dimensional Shapes – Page(651-656)
• Problem Solving • Take Apart Three-Dimensional Shapes Homework & practice 11.4 – Page(655-656)

Lesson: 5 Two-Dimensional Shapes on Three-Dimensional Shapes

• Lesson 11.5 Two-Dimensional Shapes on Three-Dimensional Shapes – Page(657-662)
• Two-Dimensional Shapes on Three-Dimensional Shapes Homework & practice 11.5 – Page(661-662)
• Three–Dimensional Geometry Chapter 11 Review/Test – Page(663-666)

Curious George

Answer: Cone,cylinder,cube.

Explanation: In the above sand castle there are many three-dimensional shapes that are cone,cylinder,cube.

Three–Dimensional Geometry Show What You Know

Alike and Different

Circle the objects that are alike.

Explanation: In the above shapes there are 2 cubes.So, circle cubes.

Explanation: In the above shapes there are 2 cones.So, circle cones.

Identify Three-Dimensional Shapes

Explanation: The above given shape is cube.So, color it yellow.

Explanation: The above given shape is circle.So, color it blue.

Explanation: The above given shape is cylinder.So, color it red.

Sort by Size Mark an X on the object that does not belong.

Explanation: In the above shapes the 3rd shape is big compared to the others.So, put a cross mark across it.

Three–Dimensional Geometry Vocabulary Builder

Understand Vocabulary

Explanation: The above given shape is cylinder.So, color it green.

Explanation: The above given shape is sphere.so, color it blue.

Explanation: The above given shape is cube.So, color it yellow

Three–Dimensional Geometry Game: Shape Match Bingo

Three–Dimensional Geometry Vocabulary Game

Going Places with GOMATH! words

Going on a Train Trip

For 2 players

The Write Way

Lesson 11.1 Three-Dimensional Shapes

Essential Question How can you identify and describe three-dimensional shapes?

Listen and Draw

Explanation: In the above picture there are two different shapes.They are cubes and spheres.

Math Talk MATHEMATICAL PRACTICES Generalize Explain how you sorted the shapes.

Model and Draw

Share and Show MATH BOARD

Use three-dimensional shapes. Sort the shapes into three groups. Name and draw the shapes.

Question 1. only flat surfaces

Explanation: Rectangular prism and cube both have only flat surfaces.

Question 2. only a curved surface

Explanation: Sphere has only a curved surface.

Question 3. both flat and curved surfaces

Explanation: Cone and cylinder both have flat and curved surfaces.

On Your Own

MATHEMATICAL PRACTICE

Use Models Use three-dimensional shapes. Write the number of flat surfaces for each shape.

Question 4. A rectangular prism has __ flat surfaces.

Answer: A rectangular prism has 6 flat surfaces.

Question 5. A cube has __ flat surfaces.

Answer: A cube has 6 flat surfaces

Question 6. A cylinder has __ flat surfaces.

Answer: A cylinder has 2 flat surfaces

Question 7. A sphere has __ flat surfaces

Answer: A sphere has 0 flat surfaces

Explanation: The above given shape is cone.So, write cone.

Explanation: The above shape is cube.So, write cube.

Explanation: The above given shape is cylinder.So, write cylinder.

Explanation: The above givem shape is rectangular prism.So, write rectangular prism.

Problem Solving • Applications

Circle the objects that match the clues

Explanation: In the above objects the circled objects have both flat and curved surfaces.

Explanation: The circled objects in the above picture are in the shape of rectangular prisms.

Explanation: Cone and cylinder have both flat and curved surfaces, cube and rectangular prism have only flat surfaces an dthe sphere has only a curved surface.

TAKE HOME ACTIVITY • Ask your child to name real objects shaped like a sphere, a rectangular prism, and a cylinder.

Three-Dimensional Shapes Homework & practice 11.1

Three-Dimensional Shapes

Use three-dimensional shapes. Write the number of flat surfaces for each shape.

Question 1. A cylinder has __ flat surfaces.

Answer: A cylinder has 2 flat surfaces.

Question 2. A rectangular prism has _ flat surfaces.

Go Math Book Grade 1 Chapter 11 Lesson 1 Answer Key Question 3. A cone has _ flat surface.

Answer: A cone has 1 flat surface.

Question 4. A cube has _ flat surfaces.

Answer: A cube has 6 flat surfaces.

Problem Solving

Explanation: Th circled object in the above objects is sphere.A sphere has only a curved surface.

Lesson Check

Explanation: The circled shape in the above shapes has both flat and curved surfaces.

Explanation: The circled shape in the above shapes is a sphere.A sphere has only curved surface.

Spiral Review

Question 3. Count forward. Write the number that is missing. 109, 110, 111, __, 113

Answer: 109,110,111,112,113.

Explanation: There is a missing number in between the given number. Count forward.112 comes after 111. So, the missing number is 112.

Explanation: When we add 2 and 3, the sum is 5.So, 2+3=5.

Lesson 11.2 Combine Three-Dimensional Shapes

Essential Question How can you combine three-dimensional shapes to make new shapes? Answer: To make new shapes using three-dimensional shapes we have to put the shapes above,below or besides the the other shape so that a new shape will be formed.

Explanation: The above shapes are made by combining two shapes. The new shapes are cylinder and rectangular prism.

Math Talk MATHEMATICAL PRACTICES Apply to Describe the new shapes Mandy and Carl made.

Explanation: In the above shapes, the circled shapes are the shapes that are made by combining the given shapes beside them.

Explanation: In the above shapes the circled shapes are the shapes that are made by combing the given shapes besides them.

Problem Solving • Applications WRITE Math

GO DEEPER Circle the shapes you could use to model the ice cream cone.

Explanation: In the above shapes the circles shapes make the icecream.

Explanation: The circled shapes in the above shapes is a cube and is formed by combining cubes.

Explanation: The marked shapes in the above picture are formed by combining the two given shapes which are a rectangular prism and a cone.

TAKE HOME ACTIVITY • Ask your child to show you two different new shapes he or she can make by combining a soup can and a cereal box.

Combine Three-Dimensional Shapes Homework & Practice 11.2

Use three-dimensional shapes.

Explanation:. The circled shapes in the above picture are formed by combing the two given shapes besides them.

Explanation: The circled shapes cone and the cylinder are used to make the model the bird feeder

Go Math Grade 1 Lesson 11.2 Homework Answers Question 4. WRITE Math Combine two shapes to make a new shape. Describe how you put the shapes together. _____________ _____________ _____________ _____________

Answer: We can put the shapes together by placing the shapes one beside,above or below the other shapes.

Explanation:

The circled shapes in the above picture are formed by combing the two given shapes cylinder and cone.

Question 2. Write the sum. Write how many tens. 40 + 20 = __ __ tens

Answer: 40+20=60=6 tens

Explanation: When we add 4 tens and 2 tens we get 6 tens.

Explanation: Emi has 15 crayons. She gives them some crayons to Jo. Now she has 9 crayons. When we subtract 9 from 15 we get 6. So, the number of crayons Emi gave to Jo is 6 crayons.

Lesson 11.3 Make New Three-Dimensional Shapes

Essential Question How can you use a combined shape to build new shapes?

Draw to copy the shape.

Math Talk MATHEMATICAL PRACTICES Describe how to draw to copy the new shape.

Explanation: By repeating the bulided shape we can make the circled shape.We cannot make the other shape because its not like the shape given.

Explanation: The given shape is made by combining the 2 cubes 3 times.

Explanation: The given shape is made by combining 1 cube 6 times.

TAKE HOME ACTIVITY • Ask your child to explain how he or she solved Exercise 4.

Make New Three-Dimensional Shapes Homework & Practice 11.3

Explanation: In the above shapes, the circled shapes are the shapes that are made by combing the given shapes beside them.

Explanation: The above shape is formed by repeating the given shape.

Explanation: By drawing a cube and a cylinder and repeating it we can make a larger shape like the above.

Explanation: In the above shapes the circled shapes are the shapes that are made by combing the given shapes above them.

Question 2. Which addition fact helps you solve 15 − 6 = ? Write the number sentence. __ + __ = __

Answer: 6+3=9

Explanation: When we add 6 and 3 we get the sum 9. Therefore the sum of 6 and 3 is 9.

Explanation: When we add 5 and 6 we get the sum as 11. The doubles fact 5+5=10 helps us to solve 5+6=11.

Three–Dimensional Geometry Mid-Chapter Check Point

Concepts and Skills

Question 1. Circle the rectangular prisms.

Explanation: The circled objects in the above picture have both flat and curved surfaces.

Explanation: The circled object in the above picture is formed by combining the shapes cube and cone.

Explanation: When we combine and repeat the shape given in the question we get the third shape marked in the above picture.

Lessson 11.4 Problem Solving • Take Apart Three-Dimensional Shapes

Unlock the Problem

Explanation: The above shape is made by combining the circled shapes cylinder and rectangular prism.

HOME CONNECTION • Your child is investigating how shapes can be taken apart. Being able to decompose shapes into smaller parts provides a foundation for future work with fractions.

Try Another Problem

Kim used shapes to build this castle.

Use three-dimensional shapes. Circle your answer.

Explanation: Kim made the tower by combining the circled shapes cone and a cylinder.

Explanation: Kim made the wall by combining the circled shapes cube and rectangular prism.

Explanation: Kim made the above wall by combining the above circled shapes cylinder and cube.

Explanation: Kim bulid the above gate by combining the circled shapes cylinder and rectangular prism.

Math Talk MATHEMATICAL PRACTICES Look for Structure How do you know which shapes Kim used to build the tower?

MATHEMATICAL PRACTICE Analyze Use three-dimensional shapes. Circle your answer.

Explanation: zack build the gate by using the circled shapes cone and rectangular prism.

Explanation: Chris build the above wall by using the circled shapes cylinder,cube and rectangular prism.

Explanation: Roscoe and cylinder.a build the tower by using the shapes.

GO DEEPER Circle the ways that show the same shape.

Explanation: The circled shape in the above pictures is a cube and it is formed by combining cubes only.

Explanation: Sharon made the shapes by using the shapes cube and rectangular prism.

TAKE HOME ACTIVITY • Use real items such as a soup can (cylinder) and a cereal box (rectangular prism) to build a shape. Ask your child to name the shapes you used.

Problem Solving • Take Apart Three-Dimensional Shapes Homework & Practice 11.4

Explanation: Paco made a robot by using the circled shapes cylinder and rectangular prism.

Explanation: The circled shape in the above picture is a rectangular prism and it is made by combining rectangular prisms only.

Explanation: I made a by using some shapes that are cones and rectangular prisms.

Explanation: The circled shapes in the above picture are used by Lara to make the picture frame.

Explanation: In the above picture we used the symbols <,> and = to compare the numbers. 13 is lessthan 31 so, use < symbol to compare 13 is equal to 13 so, use = symbol to compare 31 is greaterthan 13 so, use > symbol to compare 31 isnequal to 31 so, use = symbol to compare.

Question 3. Subtract. What is the difference? Write the number. 60 – 30 = __

Answer: 60-30=30.

Explanation: When we subtract 30 from 60 we get 30.3 tens fro 6 tens is 3 tens. Therefore 60-30=30.

Lesson 11.5 Two-Dimensional Shapes on Three-Dimensional Shapes

Essential Question What two-dimensional shapes do you see on the flat surfaces of three-dimensional shapes?

Math Talk MATHEMATICAL PRACTICES Analyze What other shape could you use to draw the same kind of picture?

Answer: I could have used circle to draw the same kind of picture.

Explanation: When we trace around the flat surfaces of the three-dimensional shapes we get two-dimensional shapes they are square and rectangle.

Share and Show MATH BOARD Use three-dimensional shapes. Trace around the flat surfaces. Circle the shapes you draw.

Explanation: When we trace around the flat surfaces of the three-dimensional shape cube we get two-dimensional shape that is square.

Explanation: When we trace around the flat surfaces of the three-dimensional shape cylinder we get two-dimensional shape that is circle.

Explanation: When we trace around the flat surfaces of the three-dimensional shape rectangular prism we get two-dimensional shapes they are square and rectangle.

MATHEMATICAL PRACTICE Make Connections Circle the objects you could trace to draw the shape.

Explanation: When we trace around the flat surfaces of the three-dimensional object which is circled abovewe get two-dimensional shape that is rectangle.

Explanation: When we trace around the flat surfaces of the three-dimensional objects which are circled above we get two-dimensional shape that is circle.

Explanation: When we trace around the flat surfaces of the three-dimensional objects which are circled above we get two-dimensional shape that is square.

Explanation: When we trace around the flat surfaces of the three-dimensional shape which is given above we get two-dimensional shape that is triangle.

Circle the shape that the pattern will make if you fold it and tape it together.

Explanation: If we fold the above given pattern we get the three-dimensional shape that is rectangular prism.

Explanation: If we fold the above given pattern we get the three-dimensional shape that is cube.

Explanation: If kie trace the above given object he gets the two-dimensional shape that is circle.

TAKE HOME ACTIVITY • Collect a few three-dimensional objects, such as boxes, that are shaped like rectangular prisms or cubes. Ask your child what two-dimensional shapes are on those objects.

Two-Dimensional Shapes on Three-Dimensional Shapes Homework & Practice 11.5

Circle the objects you could trace to draw the shape.

Explanation: When we trace around the flat surfaces of the three-dimensional objects which are circled above we get two-dimensional shape that is rectangle.

Explanation: When we trace around the flat surfaces of the three-dimensional object which is given above we get two-dimensional shape that is circle.

Explanation: When we trace around the flat surfaces of the three-dimensional object cone which is mentioned above we get the two-dimensional shape that is a circle.

Explanation: When we trace around the flat surfaces of the three-dimensional object rectangular prism which is mentioned above we get two-dimensional shape that is rectangle and square.

Write a subtraction sentence to solve.

Question 3. Jade has 8 books. She gives some of them to Dana. Now Jade has 6 books. How many did she give to Dana? __ – __ = __ __ books

Answer: 8-6=2 2 books

Explanation: Jade has 8 books. She gives some of them to Dana. Now Jade has 6 books. 8-6=2 Therefore, the number of books she give to Dana are 2.

Question 4. Write the sum. 3 + 0 = __

Answer: 3+0=3

Explanation: If we add any number with zero we get the sum same as the number we added.

Three–Dimensional Geometry Chapter 11 Review/Test

Explanation: The shapes that have only flat surfaces are cube and rectangular prism The shape that has only a curved surface is a sphere The shapes that have both flat and curved surfaces are cone and cylinder.

Explanation: The marked shapes in the above picture can be made by joining the shapes cube and cylinder given above.

Explanation: Demon used the marked shapes cube and cone to build the shape given above.

Explanation: When we trace the flat surface of the three-dimensional shape cone we get a two-dimensional shape that is circle.

Explanation: When sara trace the flat surface of the shape given above he will get the two-dimensionla shape that is circle.

Explanation: In the above given shapes, the marked shape cylinder has 2 flat surfaces.

Explanation: Ellen used the above circled shapes cylinder and rectangular prism to build the shape given.

Explanation: When we combine the two shapes cylinder and rectangular prism we can also build another shape mentioned above.

Explanation: Hector build the above shape by using the marked shapes from the picture given they are cone, cube and cylinder.

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