The area of a trapezium is 34 square and the length of one of the parallel Sides is 10 cm and its height is 40 cm. Find the length of the other parallel Side.
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let the lengths of parallel sides = 10cm and b cm
height = 4cm
area = 1/2 × (10+b) × 4
34 = 2 × (10+b)
10+b = 34/2 = 17
b = 17-10 = 7cm
the length of the other parallel side is 7cm
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