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

The answer is

Step-by-step explanation:

To convert an angle from degrees to radians multiply the value by

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

The value in radians is

Reduce the fraction with 60

We have the final answer as

Hope this helps you

if you mean

then it's c. 8, -7/3

but if you mean

then it is

need more detail

step-by-step explanation:

lele