What is the measure of xº?
A 6°
B 24°
C 36°
D 72°

Answer:
x = 36º
Step-by-step explanation:
The sum of the angles in a triangle is 180º
x + 2x + 72 = 180
Combine like terms
3x + 72 = 180
Subtract 72 from both sides
3x = 108
Divide both sides by 3
x = 36º