Question

In figure , prove that about parallel to ef

Answer 1

AB||CD
angle bac =angle and
57=57
CD||Ef
..........

Answer 2

hey mate!!

here is your answer....

In ques 10,in the figure...

as we know that if alternate angles are equal then lines are parallel, so

AB parallel to CD. ______(1)

angle BAC=angle ACD

now,

angle FEC+angle AND=180°

35+145=180°

and we know that

if sum of Co-interior angles are 180°then lines are parallel

so, EF parallel to CD____(2)

From (1) and (2)

we can proof that

AB parallel to EF

★★Hope it will be helpful for you★★