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In figure if I║m , n║p and ∠1 = 85o find ∠2.
Solution
n?p and m is transversal
∠1 = ∠3 = 85o [Corresponding angles]
Also m?I& p is transversal
∠2 + ∠3 = 180o [Consecutive interior angles]
⇒ ∠2 + 85o = 180o
⇒ ∠2 + 180o– 85o
⇒ ∠2 = 95o Ans.