Question

if an angle of a parallelogram is two third of its adjacent

Answer 1

let the adjacent  angle be x
angle will be 2x/3
now, as it is parallelogram,
x + 2x/3 = 180°
⇒5x/3= 180°
⇒x= (180°×3)/5
     = 108°
adjacent angle = 108° and other angle is 72°

Answer 2

the angles are 108 & 72 of given parallelogram