If an angle of a parallelogram is two-third of its adjacent angle, find the angles of the parallelogram.

Explanation

Let x and y be two adjacent angles of a parallelogram

A.T.Q

`x=(2/3)y`_____1

As we know that sum of adjacent angles are supplementary in parallelogram

`x+y=180^@`

`(2/3)y+y=180^@`

`2y+3y=540^@`

`y=108^@`

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