Find the altitude of a trapezium such that sum of the lengths of whose bases is 7.5 and whose area is 30 cm square
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Area of trapezium=1/2 x (sum of parallel sides) x height
30=1/2 x 7.5 x height
Height=30 x 2 /7.5
Height=8cm.
30=1/2 x 7.5 x height
Height=30 x 2 /7.5
Height=8cm.
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