Question

Which of the following is equivalent to 45 degrees?

A. 1/4π
B. 1/3π
C. 0.52π
D. 0.45π

Answer 1

1. Which of the following is equivalent to 45 degrees?

A. $1/4\pi$

B. $1/3\pi$

C. $0.52\pi$

D. $0.45\pi$

**Solution.**

The angle of 180 degrees equals to $\pi$, as it is known.

The angle of 45 degrees is 4 times smaller, so it is equals to $\frac{\pi}{4}$.

Thus, the answer A is correct.

**Answer:** A.