Question

3. The lengths of the parallel sides of a trapezium are in the ratio 3 : 5 and the distance between them is
10 cm. If the area of trapezium is 120 cm?, find the lengths of its parallel sides.​

Answer 1

area of trapezium =(a+b)/2xh

Let the length of two sides be 3xand5x

Then, 120=(3x+5x)*10/2

40x=120

x=3

Therefore lenght of parallel sides are 9(3*3) and 15(5*3)

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