In the given figure, line I intersects two parallel lines PQ and RS. Then, which of the following is true? (a) ∠1 = ∠5 (b) ∠4 = ∠8 (c) ∠5 = ∠8 (d) ∠3 = ∠7
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In this b part is not true rest all are true
Given, PQ parallel to RS and line l is a transversal.
∴∠2=∠4 [ Corresponding angles ]
∠1=∠3 [ Corresponding angles ]
∠6=∠7 [ Alternate exterior angles ]
but ∠4=∠8[supplementary angles]
So we can conclude that here all are correct but b that is ∠4 = ∠8 is not correct
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