Question

The angles of a triangle haves measures of 80°, 75°, and (x-12)°. What is the value of x?

A. 47°
B. 57°
C. 27°
D. 37°

Answer 1

x=37°

Explanation:

Since 80°+75°+(x-12)°=180° we have that x=180°-80°-75°+12°

so, x=37°