Question

You have 2 supplementary angles.

One of the angles is obtuse and has
a measure of 120 degrees. What is
the measure of the second angle?
120 degrees
90 degrees
60 degrees

Answer 1

The third option, 60°

Explanation:

Supplementary angles add up to 180°

`x+120=180\\x=60\\`

The angle is 60°

Hope this helps :-)