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Question
PQRS is a trapezium in which PQ || SR and ∠P = 130°, ∠Q = 110°. Then ∠R is equal to ______.
Options
70°
50°
65°
55°
Solution
PQRS is a trapezium in which PQ || SR and ∠P = 130°, ∠Q = 110°. Then ∠R is equal to 70°.
Explanation:
Since, PQRS is a trapezium and PQ || SR.
∴ ∠Q + ∠R = 180° ...[∵ Angles between the pair of parallel sides are supplementary]
⇒ ∠R = 180° – 110°
⇒ ∠R = 70°
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