Question

the adjacent angle of a parallelogram are x and 3x . find their measures

Answer 1

x+3x=180
4x=180
x= 45
3x=135
so the angles are 45,135

Answer 2

x+3x = 180 ( opp. sides og || gm ).
4x = 180
x= 180/4
x=45

so angles are 45 and 135
hope it helps you .......