Question

The measures of 2 of the angles of a triangle are 75° and 65°, what is the measure of the 3rd

angle?
90°
50°
30
40°

Answer 1

40

Explanation:

add 75+65, getting 140.

Triangle means you have to get to 180 degrees.

subtracting 140 from 180 gives you 40

3rd angle=40

Answer 2

it’s 40°
180-(75+65) =40