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The area of a field in the shape of a trapezium measures 1440sq m. The perpendicular distance between its parallel sides is 24cm. If the ratio of the sides is 5:3, the length of the longer parallel side is:

Correct Answer: 75

Explanation:

Area of field =  1 2 * 5 x + 3 x * 24  = 96x sq.m  


96x = 1440       => x = 1440 96  = 15  


Hence, the length of longer parallel side = 5x = 75m


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