Question

two adjacent angles of a parallelogram are in the ratio 1:2.find all the angles of the parallogram

Answer 1

sum of adjacent angles of a parallelogram = 180°
let the angles be 1x and 2x
1x+2x=180°
3x=180°
x=180/3
x=60°

1st angle = 60°
2nd angle = 2×60=120°

hope this answer helps you

Answer 2

let the angles of the parallelogram be x
now we know that in a parallelogram the adjacent angles re supplementary
1x+2x=180
3x=180
x=60
So x=60° and 2x=120°
now opposite angles of the parallelogram are equal
so all angles are 60°,120°,60°,120°