Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Name ______________________________________ Date _________________________ Period __________ Accelerated Algebra 1 Trigonometric Ratios Worksheet * When doing trig problems, think: ________________________________________ sin cos tan I. Use the Diagram at the right to find the trigonometric ratio. 1. sin A ___________ 2. cos A ___________ 3. tan A ___________ 4. sin B ___________ 5. cos B ___________ 6. tan B ___________ Use for #1-6all 7. sin J ___________ 8. cos K ___________ 9. tan K ___________ 10. cos J ___________ Use for #7-10all II. Find the sine, cosine, and tangent of the acute angles of the triangle. 11. sin D ___________ sin F ___________ cos D ___________ cos F ___________ tan D ___________ tan F ___________ III. Find the sine, cosine, and tangent of the acute angles of the triangle. Express each answer as a decimal rounded to the nearest ten-thousandths. 12. Accelerated Algebra 1 sin R ___________ cos R ___________ tan R ___________ sin Q ___________ cos Q ___________ tan Q ___________ Page 1 IV. Match the trigonometric expression with the correct ratio. Some ratios may be used more than once, and some may not be used at all. 5 ______ 13. sin A ? A. 13 12 ______ 14. cos A ? B. 13 5 ______ 15. tan A ? C. 12 12 ______ 16. sin B ? D. 5 13 ______ 17. cos B ? E. 12 13 ______ 18. tan B ? F. 5 V. Use a calculator to approximate the given value to the nearest ten thousandth. 19. sin 10 ___________ 20. cos 38 ___________ 21. tan 44 ___________ 22. sin 74 ___________ 23. tan 65 ___________ 24. cos 63 ___________ 25. cos 33 ___________ 26. sin 57 ___________ 27. tan 24 ___________ VI. A is an acute angle. Use a calculator to approximate the measure of A . Round your answer to the nearest degree. 28. sin A 0.42 __________ 29. tan A 2.50 __________ 30. tan A 2.66 __________ 31. cos A 0.98 __________ 32. sin A 0.02 __________ 33. tan A 1.50 __________ VII. Find the measure of the indicated angle. Round your answer to the nearest degree. R 34. 35. 36. 8 S 11 mR __________ Accelerated Algebra 1 T mA __________ mC __________ Page 2