Two adjacent angles of a parallelogram are as 1 : 2. Find the measures of all the angles of the parallelogram.
Let one of the adjacent angles are x°
Therfore adjacent angles are = x° and 2x°
Sum of adjacent angles = 180°
Other angle = 180° - 60° = 120°
Therefore angles of the parallelograms are 60°, 60°, 120° and 120°
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