Question

two adjacent angles of a parallelogram are in ratio 1:5.find all the angles of parallelogram

Answer 1

let the common factor be x
then,
5x+7x=180(adjacent angles of a parallelogram are supplementary)
12x=180
x=180/12=15
therefore the angles are
5x=5*15=75
7x=7*15=105
opposite angles of a parallelogram measure the same
hence 1 pair of opp. angles measure 75
the other pair measures 105

hope this helps
pls mark as brainliest