the area of a trapezium is 180 cm square its side 12 CM if one of the parallel side is double that of the other find two parallel sides
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the area of trapezium = a + b / 2 × h
a is parallel side
b is another parallel side
h is height
we will assume that side is height
it's given that one parallel side is double that of other
first parallel side be. x
another parallel side will be 2x
180=x +2x/2×12
180×2= x×12 + 2x × 12
360 = 12x + 24x
360= 36x
x = 360/36
x=10
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