Question

ABCD is a parallelogram IF angle dab =66 and dbc =80, find angle cdb

Answer 1

Given That ABCD is a parallelogram and if BD is diagonal.

Then angle DAB = DCB = 66(Since opposite angles are equal).

We know that sum of angles is 180.

DCB + BDC + DBC = 180

66 + BDC + 80 = 180

146 + BDC = 180

BDC = 180 - 146

BDC = 34.

Hence angle CDB = 34 degrees.


Hope this helps!