In ΔABC ~ ΔADE and DE|| BC. If DE = 3cm, BC = 6 cm and area (ΔADE) =15 sq. cm, find the area of ΔABC.

Given: ΔABC ~ ΔADE
DE = 3cm, BC = 6 cm and area (ΔADE) =15 sq. cm
We know that, the ratio of two similar triangles is equal to the square of the ratio of their corresponding sides.
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[given]
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⇒ ar (∆ABC) = 60cm2
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