the area of trapezium is 180cm² and it's height is 9cm. if one of the parallel sides is longer than the other by 6 cm, the length of the longer of the parallel sides is
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ans is 13cm hope it will help u
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shivangi2004:
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whai to
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no bro it's wrong
ans is 23cm
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let, the smaller one of the parallel sides = x .
area of trapezium = 1/2 × (sum of parallel sides ) .distance b/w them .
you are given ,
area = 180 cm sq .
height = 9 cm .
we consider the smaller side = x cm .
longer side = x +6 cm .
180 = 1/2×(x+x+6)(9) .
360 = (2x +6 ) (9) .
360/9 = 2x +6 .
40 = 2x +6 .
40-6 = 2x .
2x = 34.
x = 17 .
smaller side = 17 .
longer. side = 17+6 .
=23.
area of trapezium = 1/2 × (sum of parallel sides ) .distance b/w them .
you are given ,
area = 180 cm sq .
height = 9 cm .
we consider the smaller side = x cm .
longer side = x +6 cm .
180 = 1/2×(x+x+6)(9) .
360 = (2x +6 ) (9) .
360/9 = 2x +6 .
40 = 2x +6 .
40-6 = 2x .
2x = 34.
x = 17 .
smaller side = 17 .
longer. side = 17+6 .
=23.
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