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Question

The area of a trapezium is 182cm2. Its height is 14cm. The larger parallel side is longer than the other by 16cm. Find the length of the parallel sides.

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Solution

Given Area of Trapezium=182cm2,h=14cm

Let the upper parallel side be x

other side =x+16 cm

Area of Trapezium =12h(a+b) where a and b are the parallel sides

182=12×14(x+x+16)

182=7(2x+16)

182=14(x+8)

(x+8)=18214=13

x=138=5

the shorter parallel side=5cm and the base of the Trapezium =5+16=21cm

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