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Trigonometric Ratios Exercise: Understanding and Correcting Common Mistakes

Learn about trigonometric ratios and how to solve related problems. Identify and correct errors in ratio calculations to improve understanding. Practice using given angles to find unknown sides accurately.

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Trigonometric Ratios Exercise: Understanding and Correcting Common Mistakes

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  1. Warm Up Tuesday, April 15th A Write a Ratio for each Sin A Cos B 13 6 8 B C

  2. EOCT Week 13 #2

  3. Homework Answers

  4. What did the student do wrong? Find x 2x=5 x =5/2 45˚ 5 x 45˚

  5. What did the student do wrong? Find x 49 + 64=c² 113=c² √113=c 8 7 x

  6. Trig Ratios

  7. What are the three Trig Functions? SINE COSINE TANGENT

  8. What Represents an unknown angle? Greek Letter q

  9. C 5 2 A M Trig Ratios

  10. Finding a side.(Figuring out which ratio to use and getting to use a trig button.)

  11. Finding a side Which sides do you have? (given angle is your theta ) What number did they give you in comparison to the number you need to find? Set it up. Solve for the variable.

  12. is a leg. You are given AC, which is the opposite side to given angle, B. Since the opposite side and adjacent side are involved, use a tangent ratio. Just Watch Find the length of BC. Round to the nearest hundredth. ?

  13. Write a trigonometric ratio. Substitute the given values. Multiply both sides by BC and divide by tan 18°. BC 36.93 ft Simplify the expression.

  14. 20 m 20 55 ) tan x #1 Try together! Shrink yourself down and stand where the angle is. Now, figure out which trig ratio you have and set up the problem.

  15. 80 ft 80  ( 72 = ) ) tan x #2 Try together! Shrink yourself down and stand where the angle is. Now, figure out which trig ratio you have and set up the problem.

  16. 283 m x #3 You Try! Shrink yourself down and stand where the angle is. Now, figure out which trig ratio you have and set up the problem.

  17. #4 You Try! 20 ft x

  18. Additional Practice

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