Question

plz ans this oues of class 9 maths chapter lines and angles​

Answer 1

Step-by-step explanation:

Since GM and HL are Angle bisector

So angle 1 =angle 2 & angle 3=angle4

Also GM and HL are parallel so angle 2 and angle 3 being alternate interior angle they are equal

So angle 2=angle3 .

Hence..

2Times angle 2= 2 Times angle 3

therefore angle AGF= Angle EHD

so they are alternate interior angle..and they are equal so EF being transversal AB and CD are parallel.

Hope this will help..

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