Question:
PQRS is a trapezium in which PQ||SR and ∠P=130°, ∠Q=110°. Then ∠R is equal to:
(a) 70o
(b) 50o
(c) 65o
(d) 55o
Solution:
(a) 70o
We know that, the adjacent angles in a trapezium are supplementary.
∠R + ∠Q = 180o
∠R + 110o = 180o
∠R = 180o – 110o
∠R = 70o
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