Q. 32

# , ar () = 9 cm2, ar () = 16 cm2. If BC = 2.1 cm, then the measure of EF isA. 2.8 cmB. 4.2 cmC. 2.5 cmD. 4.1 cm

Given Ar (ΔABC) = 9 cm2, ar (ΔDEF) = 16 cm2 and BC = 2.1 cm

We know that the ratio of areas of two similar triangles is equal to the ratio of squares of their corresponding sides.

EF = 2.8 cm

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