Question

the measure of two Angel of a triangle are 36°and 71° find the measure of the third angel, and classify the triangle according to its angels.

Answer 1

The addition of the three angles of a triangle is equal to 180°. Given that two angles measure 36° and 71°, then the third angle measures:

180° - 36° - 71° = 73°

Given that the three angles are acute (they measure less than 90°), then the triangle is also acute