Question

in a given figure angle 1= 40° find angle 2,3 and 4

Answer 1

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This is a Abhiranjan raj helping you..

Solve in fig..

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Answer 2

∠1 = ∠3 = 40° ( vertically opposite angle )
∠4 = 180 - 40 = 140° ( linear pair )
∠4 = ∠2 = 140° ( vertically opposite angle )