Converting From Degrees to Radians In Exercises 47-50, rewrite each angle in radian measure as a multiple of T7. (Do not use a calculator.) 48. (a) 3150 (b) 120 49. (a) -20 (b) -240 50. (a) -270 (b) 1440 Converting From Radians to Degrees In Exercises 51-54, rewrite each angle in degree measure. (Do not use a calculator.) 3 TT 7 TT 51. (a) (b) 2 6 52. (a) -4TT ( b) 3 TT 7 TT 13 TT 53. (a) ( b ) - 3 60 15 TT 28 TT 54. (a) 6 ( b) 15Determining Quadrants In Exercises 13-18, determine the quadrant in which each angle lies. (The angle measure is given in radians.) 14. 5 TT (a) (b ) 5 TT 6 3 5 TT 16. (a) 13 TT 12 (b) 9 18. (a) 3.5 ( b ) 2.25 Sketching Angles In Exercises 19-24, sketch each angle in standard position. 3 TT 4 TT 20. a (b) 4 3 11 7 2 TT 22. (a) (b) 6 3 24. (a) 2 ( b) 5 TT