# The measures of two angles of a triangle are 35° and 45°. What is the measure of the third angle of the triangle?

Apr 8, 2018

${100}^{o}$

#### Explanation:

The sum of the measures of the three angles of the triangle is ${180}^{o}$.

So,

${35}^{o} + {45}^{o} + z = {180}^{o}$

${80}^{o} + z = {180}^{o}$

$z = {180}^{o} - {80}^{o} = {100}^{o}$