Question

Convert the degree measurement to radians. Express answer as multiple of π: 45°A. π/5B. π/4C. π/6D. π/3

Answer 1

One degree is equal to π/180 radians. To express 45º in radians, you have to multiply the degrees by π/180:

$45º\cdot\frac{\pi}{180}=\frac{1}{4}\pi$

45º expressed in radians is π/4, the correct option is option B.