Question

An isosceles triangle has base angles that each measure 64°. Which equation can be used to find n, the measure of the third angle of this isosceles triangle in degrees?

Answer 1

Below

Explanation:

The interior three angles of a triangle sum to 180°

you know tow of them are 64 degrees

so the third one is 180 - 64 - 64 or 180 °- 128°