Q. 36

# . such that ar () = 4 ar (). If BC =12 cm, then QR =A. 9 cmB. 10 cmC. 6 cmD. 8 cm

Given ar (ΔABC) ~ ar (PQR) such that ar (ΔABC) = 4 ar (ΔPQR) and BC = 12 cm

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

QR = 6 cm

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