A ladder is leaning against the side of a building and formed an angle of 64° with the ground. What is the radian measure of this angle as a multiple of π?

Answer 1

64 degrees is slightly more than 1 radian

64 x pi/180 = 16pi/45 radians

convert degrees to radians by multiplying by pi/180

16pi/45 = about 16(3.14159)/45 = a little more than 1 radian

1 radian = about 57.3 degrees