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The area of a trapezium is 34 cm2 and the length of one of the parallel sides is 10 cm and its height is 4 cm. Find the length of the other parallel side.

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It is given that,area of trapezium = 34 cm2 and height = 4 cm Let the length of one parallel side be a. We know that,  

Area of trapezium = 1/2 (Sum of parallel sides) × (Distances between parallel sides)

34 cm2 = 1/2(10cm + a) x (4cm)

34cm = 2(10cm + a)

17cm = 10cm + a

a = 17cm - 10cm = 7cm

Thus, the length of the other parallel side is 7 cm.

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