Question

If an angle of a parallelogram is four-fifths of it's adjacent angle, find the angles of the parallelogram.

Answer 1

HIIIII HERE IS YOUR ANSWER....,

In parallelogram ABCD,

angleB + angleC=180......(adjacent angles)
4/5angleC+angleC=180

9/5 angleC=180
angle C =180×5/9
angleC = 100

angleB+angleC=180
angleB=80

angleB=angleD=80. ........ (opposite angles)

angleC=angleA=100. ......(opposite angles)

HOPE IT HELPS YOU.