Question

choose the correct alternative answer for each of the following questions. 1 In square PQRS,m angle p=m Angle R=108°,m angle Q=m Angle s =72° state which pair of sides of those given below is parallel
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Answer 1

Answer:

if a quadirateral PQRS is given in such a way that ∠P = ∠R and ∠Q =∠S     Step-by-step explanation:

also ∠P + ∠Q = 180° , ∠P + ∠S = 180°

∠R + ∠Q = 180° , ∠R + ∠S = 180°

then, PQ || RS and PS || QR.

in given option , (A) is wrong because PQ doesn't parallel to QR

(B) is correct because PQ parallel to SR

(C) is wrong because SR doesn't parallel to SP.

(D) is wrong because PS doesn't parallel to P.

Answer 2

Answer:

[ Opposite angles are equal . ] supplementary . Therefore , PQRS is a parallelogram.