In Fig., if AB || CD, then the value of x isA. 20°B. 30°C. 45°D. 60 – InterviewSolution

1.

In Fig., if AB || CD, then the value of x isA. 20°B. 30°C. 45°D. 60°

Answer»

Given that,

AB ‖ CD and transversal cuts them

Let,

∠1 = 120° + x and

∠2 = x

∠1 = ∠3 (Alternate angles)

∠3 = 120° + x (i)

∠2 + ∠3 = 180°(Linear pair)

x + 120° + x = 180°

2x = 60°

x = 30°

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