In Fig 8.115, ∠ 1=60° and ∠ 2= if a right angle. Prove that l || m .

Question

In Fig 8.115, &#x2220; 1=60&#xB0; and &#x2220; 2= if a right angle. Prove that l || m .

Philoid · Accepted Answer

Given,

∠1 = 60^o

∠2 = of right angle

To prove: l ‖ m

Proof: ∠1 = 60^o

∠2 = * 90^o = 60^o

Since, ∠1 = ∠2 = 60^o

Therefore, l ‖ m as pair of corresponding angles are equal.