Answer:
25
Step-by-step explanation:
Theorem:
The sum of the measures of the interior angles of a triangle is 180 degrees.
The theorem is can be written as the equation below.
m<A + m<B + m<C = 180
We know the measures of angles A and B, so we substitute the values for those measures, and we solve for the measure of angle C.
72 + 83 + m<C = 180
Add like terms on the left side.
155 + m<C = 180
Subtract 155 from both sides.
m<C = 25
Answer: m<C = 25
