area of a trapezium is 248sq m. and it's height is 8 m. If one of the parallel side is smaller than the other by 4m. find two parallel sides.
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Area of trapezium= 248sq m
height of that trapezium= 8m
let the one parallel side of trapezium be x
other parallel side = x-4
according to question,
area of trapezium = 248 sq m
1/2 x sum of parallel side x height =248
1/2 x (x+x-4) x 8 =248
1/2 x (2x-4) x 8 = 248
4(2x-4) =248
2x-4= 248/4
2x-4 = 62
2x = 62 +4
2x = 66
x= 33
therefore,one parallel side =33m
other parallel side=33-4
=29m
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