# How do you find the supplement of a radian measure?

##### 1 Answer

May 2, 2015

Two angles are, **by definition**, *supplementary* if their sum measured in degrees is *radians*, their sum should be equal to *radians*.

So, if your angle is given in *radians*, subtract it from *supplementary* angle in *radians*.

Example:

Angle *radians* as

It's *supplementary* angle is