The area of trapezium is 70 cm².The distance between parallel sides is 7 cm.If one of the parallel side is 8 cm.Choose the measure of other parallel sides
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The total area of the trapezium= 70cm²
The distance between parallel sides = height of trapezium=7cm=h
The length of one parallel side=8 cm=a
We want to find the length of other parallel side
let the length of other parallel side be b
by the formula for area of trapezium
area A = a+b/2×h
70 = 8+b/2×7
b= 12
:. The lenght of other parallel side is 12 cm
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