Question

A triangle has an angle that measures 43° and an angle that measures 28. What is the

measure of the third angle of the triangle?
O 15
O 19
O 71
109

Answer 1

To find the measure of the third angle of a triangle, subtract the sum of the given angles from 180 degrees. In this case, the third angle measures 109 degrees.

Step-by-step explanation:

To find the measure of the third angle of a triangle, we need to know that the sum of the measures of the angles in a triangle is always 180 degrees. So, if we have two angles measuring 43° and 28°, we can find the measure of the third angle by subtracting the sum of those angles from 180 degrees:

Third angle = 180° - (43° + 28°) = 180° - 71° = 109°

Therefore, the measure of the third angle of the triangle is 109 degrees.

Learn more about Triangle angles