one of the parallel sides of trapezium is three times the other. the distance between them is 14cm. if the area of the trapezium is 84sq. cm what is the length of the parallel sides
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Step-by-step explanation:
Let the length of one parallel side be x
Then the length of other parallel side is 3x
Area of a trapezium = (3x + x)/2 × distance between them
4x/2 × 14 = 84
2x × 14 = 84
2x = 84/14
2x = 6
x = 6/2
x = 3cm
Therefore the sides are x = 3cm and 3x = 9cm
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