Question

What is the radian measure of an angle whose measure is -420 degrees

Answer 1

The answer is

`- (7\pi)/(3)`

Explanation:

To convert an angle from degrees to radians multiply the value by
`(\pi)/(180)`

From the question the value to be converted is - 420°

The value in radians is

`- 420 * (\pi)/(180) \\ = - (420\pi)/(180)`

Reduce the fraction with 60

We have the final answer as

`- (7\pi)/(3)`

Hope this helps you