In the given figure, what is value (in degrees) of Q?
Show answer & explanation
Correct answer: B
Explanation
Given:
Upper angle = 80°, Lower angle = 10°, Middle angle = 140°
According to the formula:
Exterior angle = Sum of the opposite interior angles
Q = 80° + 10° + 140° − 180°
= 230° − 180°
= 50°