Question

In Fig. 6.10, ∠1 = 60° and ∠6 = 120°. Show that the lines m and n are parallel​

Answer 1

Step-by-step explanation:

Given =:∠1 60°

∠6 = 120°.

show that:lines m and n are parallel

proof: ∠1=∠3.................. opposite angles

∠3=60°

∠6+∠3=180....................... interior angles

120+60=180

L.H.S=R.H.S

therefore,lines m and n are parallel

by interior angles test.

hence proved.

Answer 2

Answer:

Given =:∠1 60°

∠6 = 120°.

show that:lines m and n are parallel

proof: ∠1=∠3.................. opposite angles

∠3=60°

∠6+∠3=180....................... interior angles

120+60=180

L.H.S=R.H.S

therefore,lines m and n are parallel

by interior angles test.

hence proved.