Question

This is the Question of Lines and Angles in Mathematics of class class 7 , Please tell me the solution .....​

Answer 1

Answer:

to prove that AB||CD

BCE+ECD= 65

ABC=65

let BC be transversal so by alternate interior angles ABC= BCD so, AB||CD

Step-by-step explanation: HOPE IT WAS HELPFUL!!!

Answer 2

Answer:

since angle B=65°............1

and angle BCE=30

angle ECD= 35°

angle BCE+ ECD=BCD

30+35=BCD

65= BCD...........2

SO, From 1 and 2

angle B = angle BCD

since they are alternate equal angles

so, AB||CD

hence proved