Question

the area of a trapezium is 540 cm2 .if the ratio of parallel sides is7:5 and the distance between them is 18 cm, find the lengths of parallel sides

Answer 1

area=1/2(a+b)*h
540=1/2(7x+5x)*18
540=6x*18
x=540/6 *18
x=5

now put the value.


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Answer 2

Area = 1/2 ( a + b ) x h
540 = 1/2 ( 7a + 5a ) x 18
540 = 6a X 18
a = 540/6 x 18
a = 5

Now Put The Value