geometry cpm homework answer key

• Get started
• Pre-Algebra

A quicker path to better grades

We have gathered all your curriculum-based courses, assignments, hints, tests, and solutions in one easy-to-use place

• Integrated I
• Integrated II
• Integrated III

Can't find your textbook?

More math. less studying.

A personal private tutor for each student. Free from preassure and study anxiety.

CPM Educational Program

• Core Connections Integrated I, 2013
• Core Connections Algebra 1, 2013

• Core Connections Geometry, 2013

• Core Connections Algebra 2, 2013
• Core Connections Integrated I, 2014

• Core Connections Integrated II, 2015

• Core Connections: Course 1

• Core Connections: Course 2

• Core Connections: Course 3

• Core Connections Integrated III, 2015

Expert Textbook Solutions

Browse your textbook to find expert solutions, hints, and answers for all exercises. The solutions are always presented as a clear and concise, step-by-step explanation with included theory and helpful figures, graphs, and diagrams. Mathleaks covers the most commonly adopted textbooks with more than 250000 expert solutions.

Mathleaks Solver

With Mathleaks, you’re not tied to your textbook for solutions. Instead, scan and solve exercises with our math solver, which instantly reads the problem by using the camera on your smartphone or tablet. Access the solver through the Mathleaks app or on our website. The Mathleaks solver works for Pre-Algebra, Algebra 1, and Algebra 2.

Mathleaks Community

Get access to the world's most popular math community with Mathleaks. You can connect with other students all over the US who are studying with the same textbook or in the same math course.

Study math more efficiently using Mathleaks for CPM Educational Program textbooks.

Home > CC1 > Chapter 9 > Lesson 9.1.1

Lesson 9.1.1, lesson 9.1.2, lesson 9.2.1, lesson 9.2.2, lesson 9.2.3, lesson 9.2.4.

© 2022 CPM Educational Program. All rights reserved.

You are using an outdated browser. Please upgrade your browser to improve your experience and security.

Mathematics Learning Platform

Platform features.

All of CPM's Core Connections curriculum are online and in an easy to use digital format. Use as a direct replacement for printed textbooks or as a companion. CPM eBooks work across all device types and are always there when you need them.

Integrated formative assessment - Students submit work directly from their eBook for specific, individualized teacher feedback. And with the built in teacher dashboard, scalable teacher feedback has never been easier. Ready to activate now?

Assessments

CPM continues to offer an extensive assessment bank for all of the CPM Core Connections curriculum. Use pre-made tests or create custom formative or summative assessments to accommodate learning needs specific to your classroom.

eTools & Desmos

Choose from a collection of CPM proprietary tools such as algebra tiles and integer tiles, or integrated Desmos activities to enhance any lesson.

Homework Help

Online step-by-step support for homework problems. CPM helps students and parents help themselves when practicing their math abilities at home.

Turn-key Integrations

Always be ready for class to begin. With CPM's automated rostering, SSO and LMS integrations, CPM's integration services lets you focus your time on teaching.

EdTech for the classroom

Never reset a password again. Support for SAML, Google, Office 365, Clever, ClassLink, and LTI SSO.

Automated Rostering

Simple to use integration wizard supports PowerSchool and OneRoster CSV and 1.1 compliant providers. This includes most SIS platforms and ClassLink.

Learning Management Systems (LMS)

Go beyond just SSO. CPM's integration services support advanced features such as loading a specific eBook lesson directly within your LMS lesson page. *LTI 1.3 compliant platforms

Online Assessments

Edulastic subscribers now have access to CPM's assessment bank for full online administration and syncronization with your gradebook.

Empower Teachers

Instruction.

Our empowering professional learning program seeks to enable teachers to build confidence in the mathematical content, plan lessons purposefully, and assess understanding.

Register for in-person events and live remote sessions or access asynchronous content modules and support resources all in one place.

Accreditation

CPM is a fully accredited member of the Middle States Association Commissions on Elementary and Secondary Schools.

Testimonials

It's harder to work through the problem than being given the answer. But when I was looking at my required college curriculum, I realized that this work helped me prepare better for college. You understand the methods for solving the problem, instead of a teacher handing you the formula. You understand why it works that way.

Senior, (4th year of CPM)

We are already seeing the benefits of the program (after 3 years). Students seem to be better prepared for higher level math courses and stronger results are showing up on various standardized tests.

Peter, Director of Curriculum and Instruction

My daughter has always struggled with mathematics. But with CPM she began to like math and really understands what she is learning. All of the hands-on learning tools, like the Algebra tiles, have really helped her to finally succeed in math class.

Parent of CPM Student

One of the main things I've heard from the teachers is that the structure of the lessons gives them the ability to quickly identify how individuals, small groups and the entire class are doing during a lesson. As a result the teachers are able to interact with students or facilitate activities to provide immediate responses. Students are less likely to fall through the cracks and students continue to progress at a productive pace.

Travis, Math Coordinator

Students are organized into study teams and work on problem-based applications, team strategies and real-world applications. Many algebra teachers feel reenergized and are having more fun teaching math with the CPM approach. Algebra classes focus on both basic skills and problem solving strategies that are used to help students relate to and understand the concepts behind the problems. Our students are being taught Algebra in a more rigorous and relevant manner. It's really about discovering the math, rather than being told the math.

Julie, Assistant Principal

Ready to Learn More

Thousands of school districts trust CPM to provide effective math curriculum and professional development. Learn why.