Q. 395.0( 2 Votes )

# In Fig. 6.16, if AB ∥ CD, then

A. ∠2 = ∠3

B. ∠1 = ∠4

C. ∠4 = ∠1 + ∠2

D. ∠1 + ∠2 = ∠3 + ∠4

Answer :

Exterior angle is equal to the sum of opposite interior angles

Then;

In Δ ABC

As BC is extended

∠A + ∠B = ∠3 + ∠4

∴ ∠1 + ∠2 = ∠3 + ∠4

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