Question

ABCD is a quadrilateral in which AB II DC and AD II BC. Find Zb,Zc and Zd.​

Answer 1

Answer:

AB ll DC. and AD ll BC .

It means that ABCD is a parallelogram.

Opposite angles of parallelogram are equal .

so , angle C = 50° .

now, we also know , sum of adjacent angles of parallelogram is 180 ° .

so, angle A + angle D = 180°

50 + angle D = 180

angle D = 180-50

angle D = 130°

similarly, angle B = angle D

angle B = 130°

(opposite angles are equal).

hope it helps..