Need help solving for angles

4 Applying Trig Ratios - Solving for Angles Do ALL Solve each problem. Round to the nearest tenth. 9. If r = 7 and s = 10, find R. 10. If r = 12 and t = 20, find S. R Solve each triangle described, given the triangle at the right. Round to the nearest tenth if necessary. C a 11. B = 78', a = 41 12. a = 11, b = 21 A C b 13. A = 320, c = 13 Solve each problem. Round to the nearest tenth. 28. If n = 15 and m = 9, find N. M 29. If m = 8 and p = 14, find M. 30. If n = 22 and p = 30, find M. P n 31. If m = 14.3 and n = 18.8, find N. 32. If p = 17.1 and m = 7.2, find N. P N m 33. If m = 32.5 and p = 54.7, find M. 34. Geometry If the legs of a right triangle are 24 centimeters and 18 centimeters long, find the measures of the acute angles. Solve each triangle described, given the triangle at the right. Round to the nearest tenth, if necessary. 36. a = 21, c = 30 37. A = 35, b = 8 38. B = 47, b = 12.5 39. a = 3.8, b = 4.2 A B C