Question

In degree measure, the angles pi/3,pi/4 , and pi/2 are respectively: A. 60, 45, 90 B. 30, 45, 90 C. 45, 60, 90 D. 60, 30, 90 (all answers are in degrees)

Answer 1

Solution :- The value of pi expressed in radians and its equivalent degree is = 180 degree Hence, the value of pi/3 = 180/ 3 = 60 deg similarly, the value of pi/3 = 180/4= 45 deg similarly, the value of pi/2= 180/2= 90 deg Ans :- The angles of pi/3, pi/4, pi/ 4 is = 60, 45, 90 degree respectively. Hence the right option is answer is A.

Answer 2

The first thing you should do for these cases is to transform radians to degrees. To do so, you must multiply all values by a factor of (180) / (pi). Making the conversion we have
 (pi / 3) * ((180) / (pi)) = 60
 (pi / 4) * ((180) / (pi)) = 45
 (pi / 2) * ((180) / (pi)) = 90
 answer
 A. 60, 45, 90