In the given figure, angle ABC = 120 degrees, angle EDC = 120 degrees. AB is parallel to DE. What is the value (in degrees) of angle BCD?
Show answer & explanation
Correct answer: B
Explanation
Given:
∠ABC = 120°
∠EDC = 120°
AB ∥ DE
The sum of angles on a straight line is 180°.
∠ABC and ∠BCD form a straight line.
∠BCD = 180° − 120° = 60°