Question 1014208: In pparallelogram ABCD, AB is twice BC and its perimeter is 90cm. Find the measures of all the sides. Answer by ikleyn(52799) (Show Source): You can put this solution on YOUR website! .
In pparallelogram ABCD, AB is twice BC and its perimeter is 90cm. Find the measures of all the sides.
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Let x be the shorter side dimension.
Then the longer side length is 2x.
The perimeter is x + 2x + x + 2x = 6x.
It is 90 cm, so you have an equation
6x = 90.
Hence, x = = 15 cm.
Answer. The sides of parallelogram are 15 cm and 30 cm.