# Ch 25: PSAT Math: Triangles & Trigonometric Ratios

Prepare to ace questions related to triangles and trigonometric ratios when you're taking the math section of the PSAT examination. Begin by watching this chapter's online tutorial video lessons on the subjects. Then, take the included self-assessment quizzes.

## PSAT Math: Triangles and Trigonometric Ratios - Chapter Summary

Discover what you need to know about triangles and trigonometric ratios in order to answer corresponding questions on the PSAT Math examination. This chapter contains animated video lessons that can help you understand more about the sides and angles of scalene, isosceles and equilateral triangles. The chapter also explains the particulars of the Side-Side-Side (SSS), Angle-Angle (AA) and Side-Angle-Side (SAS) similarity theorems. The use of the entertaining lessons can help you to:

• Review the properties of triangles, including obtuse and equilateral
• Understand the language of similarity and similar triangle theorems
• Solve problems with similar triangles
• Identify the properties of a special right triangle
• Understand sine and cosine trigonometry problems
• Define a trigonometric ratio and solve practice equations
• Apply the Pythagorean theorem and use it to calculate distance traveled

These online video lessons teach through the use of graphics and conversational narration. Math experts present the lessons, and they answer your interactively submitted questions. Study triangles and trigonometric ratios in your spare moments. Check out the written transcripts that include bold key words. By taking the short, multiple-choice quizzes, you can become more familiar with the kinds of questions you'll encounter on the PSAT Math examination.

### PSAT Math: Triangles and Trigonometric Ratios Chapter Objectives

You'll have a chance to demonstrate what you've learned about triangles and trigonometric ratios during the PSAT Math examination. This is a paper-administered test, during which you must fill in your answers on a grid or write them out with a pencil.

There are two sections within the math portion of examination, one which allows you to use a calculator and one which does not. You'll find that the majority of the test questions are multiple choice and the remaining are student-produced response questions.

Final Exam
Chapter Exam

### Earning College Credit

Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

### Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

### Other Chapters

Other chapters within the PSAT Prep: Practice & Study Guide course

Support