Question

In Fig. 8.115 /1 = 60° and 2= 2/3 of an right angle . prove l || m

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Answer 1

Answer:

Given:

∠1 = 60° and ∠2 = ( 2/3 )rd of a right angle.

To prove: I parallel to m

Proof :

∠1 = 60°

∠2= 2/3 x 90° = 60° (given)

Thus

∠1 = ∠2 = 60°

So, I parallel to m as pair of corresponding angles are equal.