If one angle of parallelogram is twice of its adjacent angle. Find angle of parallelogram.

Answer 1

Angle A = X Degrees.
Angle B = 2X Degrees.

x + 2x = 180o
X = 60o = A.

2X = 120o = B.

C = A = 60o. The opposite angles are =.

D = B = 120o.

A+B+C+D = 60 + 120 + 60 + 120 = 360o.

Answer 2

If one angle in a rhombus is 80 degrees, what is the measure of its adjacent angle?

Answer 3

thanks , it helped me very much......