1.

In Fig., which one of the following is not true? (a) ∠1 + ∠5 = 180° (b) ∠2 + ∠5 = 180° (c) ∠3 + ∠8 = 180° (d) ∠2 + ∠3 = 180°

Answer»

(d) ∠2 + ∠3 = 180o

We know that, interior opposite angles are equal

∠2 = ∠3



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