# Angles #(2(x+15))# and #(3x+20)# are a pair of interior angles. What are their values?

##### 1 Answer

If you mean they are **co-interior** the angles are 82 and 98 degrees respectively.

If you mean they are **alternate interior angles** the angles are both 50 degrees.

#### Explanation:

I assume you mean the **(co)interior angles** made by a transversal on either side of a pair of parallel lines. In that case,

This is because the sum of co-interior angles adds up to 180 degrees(they are supplementary).

Substitute

Else if you mean **alternate interior angles** then

Thus both angles are 50 degrees.