Determine the angles of a parallelogram if the sum of the two angles is 170.

The opposite angles of the parallelogram are equal, so one angle of the parallelogram is 170˚: 2 = 85˚.

Since the angles adjacent to one side of the parallelogram total 180˚, from here we find the value of the second angle of the parallelogram:

180˚ – 85˚ = 95˚.

Answer: the angles of the parallelogram are 85˚, 95˚, 85˚, 95˚.



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