Question

3. A triangle has two angles that measure 85° and 23°. Which has to be the measure of the third angle?

A.95°
B.157°
C.108°
D.72°

Answer 1

72

Explanation:

Answer 2

Answer: D. 72°

Explanation:

Because a triangle equals 180 we take the given info in order to find x

`85+23+x=180\\108+x=180`

`108+x=180\\-108=-108\\x=72`