Find m∠C in the figure, if || .

Since AB || DC and transversal BC intersects

them.

∠B + ∠C= 180°

[∵ Sum of interior angles is 180°]

⇒ 120°+ ∠C =180° A

⇒ ∠C = 180°- 120° = 60°

Hence, m∠C =60°

Find m∠C in the figure, if || .

them.

∠B + ∠C= 180°

[∵ Sum of interior angles is 180°]

⇒ 120°+ ∠C =180° A

⇒ ∠C = 180°- 120° = 60°

Hence, m∠C =60°