Q. 174.8( 6 Votes )

In Fig. 5.16, PA A. 60°, 120°

B. 50°,130°

C. 70°,110°

D. 80°,100°

Answer :

a = PAB = 50° (Alternate interior angles)


a = b (Adjacent angles of a parallelogram are supplementary)


a + b = 180°


b = 130°

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