Question

in parallelogram ABCD A=5degree less than twice the angle B find the angels

Answer 1

please find the attachment

Answer 2

Since parallogram is a quadrilateral, sum of four angles =360.  

Since opposite sides are parallel, opposite angles of a parallelogram are equal. And adjacent angles are supplementary.

Here A and B are supplementary so A+B =180

Given that A = B-5

Or A-B=-5

Subtract to get 2B = 185 or B = 92.5 degrees

A = B-5 = 87.5 degrees

Hence angles are

A = 87.5:  B =92.5:

C = 87.5 and D = 92.5