The two angles shown are supplementary.

Which equation can be solved to find the value of x, and what is the value of x?

A.
162° + x° = 90°; x = 72
B.
162° + x° = 180°; x = 18
C.
162° + x° = 360°; x = 198
D.
162° + x° = 180°; x = 242

Question

The two angles shown are supplementary.

Which equation can be solved to find the value of x, and what is the value of x?

A. 
162° + x° = 90°; x = 72
B. 
162° + x° = 180°; x = 18
C. 
162° + x° = 360°; x = 198
D. 
162° + x° = 180°; x = 242

silvernight269 · Answer

So first you need to know what a supplementary angle is. Its where two angles equal to the sum of 180 degrees.