Question

The measures of two angles of a triangle are 37° and 25°. What is the measure, indegrees, of the third angle?

Answer 1

You can determine the measure of the third angle using the fact that the interior angles of a triangle add up to 180°.

Using the above fact, you can set the following equation:

$37^{\circ}+25^{\circ}+x=180^{\circ}.$

Where x is the measure of the third angle.

Solving for x, you get:

$x=180^{\circ}-37^{\circ}-25^{\circ}.$

Therefore:

$x=118^{\circ}.$

Answer:

$118^{\circ}.$