Question

The measures of two interior angles of a triangle are 108° and 54°. What is the measure of the third angle?

A. 18°
B. 38°
C. 54°
D. 108°

Answer 1

Answer: A. 18°

Explanation:

Your formula is 108°+54°+X=180°
To find X, add 108° & 54°. The sum is 162°.
Next you need to subtract your sum from 180°.
180°-162°=18°
X=18°

Answer 2

Answer is 18 degree as per the question