HW 12.1 - Trigonometry (Side lengths) 1-3: Find the sine, cosine, and tangent of both acute angles of the right triangle as fractions (ratios). h 1. Sin P = cos R= P. 9 f 8 2. Cos c= tan C = R 15 с 3. fan R =. sin A = 4-6: Find the indicated trigonometric ratio as a fraction and as a decimal rounded to four decimals. M Z 20 16 4. sin M = 30 x 5. tan La к 16 6. cos Za 7-12: Use a calculator to find the value correct to three decimal places. 9. tan 72° 8. cos 8° = 7. Sin 52° 12. cos 1º – 11. sin 89° - 10. tan 8° 13 - 16: Use a scientific calculator and/or trigonometric tables to find the lengths of the labeled sides. Write the appropriate proportion, then solve. Round answers to 2 decimal places. 95- 14. p = b = 5 р 13. a = 25° 9 b 42° 18 ba 16. as V: 1720 15. u=- 9 a E D 80° 12 U E