Question

Urgent.. please do the answer

Answer 1

Answer:

Hey dude

check attached image

Answer 2

Let draw BM ? PQ and CN ? RS.

Given that� PQ || RS so that� BM || CN

Use the property of Alternate interior angles

?2 = ?3 �������� � (1)

?ABC = ?1 + �?2

But ?1 =� ?2 so that

?ABC = ?2 +� ?2

?ABC = 2?2

Similarly

?BCD = ?3 +� ?4

But ?3 =� ?4 so that

? BCD = ?3 +� ?3

? BCD = 2?3

From equation first

?ABC = ?DCB

These are alternate angles so that AB || CD

Hence proved