Question

If measure of one angle of a parallelogram is 60 degree, find the measure ofthe reamining three angles

Answer 1

let angle be represented by A
A1 =60°
A2 =180°-60°(adjacent angles are supplementary)
A2 = 120°
A1 = A3 (opp angles of llgram are equal)
A3 = 60°
A2 = A4 (opp angles of llgram are equal)
A4 = 120°
A1 = A3 = 60°
A2 = A4 = 120°