Q. 32

, ar () = 9 cm2, ar () = 16 cm2. If BC = 2.1 cm, then the measure of EF is
A. 2.8 cm

B. 4.2 cm

C. 2.5 cm

D. 4.1 cm

Answer :

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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