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8.4 Trig Ratios (Day 1) Homework Name ____________________________ Find the indicated trigonometric ratio as a fraction. You do not need to solve for the angle. 1. sinA = _________ 4. sinB = _________ 2. tanA = _________ 5. cosB = ________ 29 cm B A 21 cm 20 cm 3. cosE = _________ 6. E tanF = _________ 40 in. 24 in. C D 32 in. Draw a 30-60-90 triangle. Find each trig ratio. State your answers as fractions. 7. Triangle: 8. sin 60º = ____________ 9. cos 60º = ____________ 10. tan 30º = ____________ Find the value of x. Round measures of segments to the nearest tenth and angle measures to the nearest degree. x 11. 12. 17º 13 7 9.7 x 13. 14. 16 x 15 10 x 12 F 8 15. 16. x 36º x 4 17. 6 In ∆XYZ, Z is a right angle. If sinX = 3/5, find tan Y. 18. 70º x 7.2 In ∆ABC, C is a right angle. If cosB = 12/13, find sinB. 19. 20. (Advanced) Solve for x and y 21. (Advanced) Solve for x and y x x 18 24 27 32º y y