# Ch 17: Triangles, the Pythagorean Theorem & Congruency

Use this chapter to prepare for CAHSEE questions covering triangle sides, angles and hypotenuses. The video lessons and quizzes can show you how to use the Pythagorean theorem and determine congruence.

## Triangles, the Pythagorean Theorem & Congruency - Chapter Summary

Get ready for the CAHSEE math section with this chapter's video lessons. Instructors can introduce you to the properties of triangles, the Pythagorean theorem and the postulates used to prove congruence. There are also practice problems designed to help you:

• Identify similar triangles
• Classify triangles by angles and sides
• Determine congruence of right and isosceles triangles

Video lessons and transcripts define vocabulary terms, explain key concepts and introduce mathematical formulas. You can even try your hand at solving equations with the corresponding self-assessment quizzes. Use these resources to find out what's on the exam, create a study plan and familiarize yourself with how test questions are formatted.

### Triangles, the Pythagorean Theorem & Congruency - Objectives

If you're a California high school student, scores on the CAHSEE math section will be used to determine your proficiency in this subject area and your eligibility for a high school diploma.

Video lessons and quizzes in this chapter can help you tackle the exam's Measurement and Geometry section, which includes 17 out of 80 total multiple-choice questions. You'll need to know when to use the Pythagorean theorem and how to determine the length of a triangle's side when given measurements for the other two. Questions on this part of the test also ask you to determine the congruence of shapes and solve word problems.

9 Lessons in Chapter 17: Triangles, the Pythagorean Theorem & Congruency
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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