Triangle ABC is shown
What is the measure of xº?
Help!

9514 1404 393
Answer:
C. 36°
Step-by-step explanation:
The sum of angles in a triangle is 180°.
x° +2x° +72° = 180°
3x° = 108° . . . . subtract 72°
x° = 36° . . . . divide by 3