Question

ABCD is a quadrilateral in which all the four angles are equal. show that AB parallel to CD and AD parallel BC

Answer 1

hence, u got ur answer

Answer 2

given:all angles are equal

to prove:AB parallel to CD

AD parallel to BC

proof: angle a=b=c=d{given}

so,angle a+b=c+d

a+b=180(co-interior angles)

and if sum of co int. angles are 180 then the sides AB parallel to CD

and AD parallel to BC.

HENCE PROVED.