the length of the parallel sides of a Trapezium are in the ratio 3 is to 5 and the distance between them is 10 cm if the area of the trapezium is 120 CM square find the length of its parallel side ?
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Step-by-step explanation:
The lengths of the parallel sides of the trapezium = 3x and 5x, say.
The distance between them = 10 cm
So the area of the trapezium = (3x+5x)*10/2 = 120, or
8x = 120*2/10 = 24, or
x = 24/8 = 3.
Hence the two parallel sides are 9 cm and 15 cm.
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