# Unit 3 right triangle trigonometry homework answers

Speak now. If you look closely, the angles are everywhere! Can you name the different types of angles? Check out our online angle quizzes to put your knowledge to the test and learn more as you play. Use your knowledge of complementary and supplementary angles to answer the questions.

## SOHCAHTOA Example Problem - Trigonometry Help

This problem requires us to use either the Law of Sines or the Law of Cosines. To figure out which one we should use, let's write down all the information we have in this format:. Now we can easily see that we do not have any complete pairs such as A and a, or B and b but we do have one term from each pair a, B, and c. This tells us that we should use the Law of Cosines. We use the Law of Sines when we have one complete pair, such as B and b. Law of Cosines:.

### SOHCAHTOA Example Problem – Trigonometry Help

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Technically a student coming into a Calculus class is supposed to know both Algebra and Trigonometry. Unfortunately, the reality is often much different. Most students enter a Calculus class woefully unprepared for both the algebra and the trig that is in a Calculus class.
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