Q. 36
. such that ar (
) = 4 ar (
). If BC =12 cm, then QR =
A. 9 cm
B. 10 cm
C. 6 cm
D. 8 cm
Answer :
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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, ar (
) = 9 cm2, ar (
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. such that ar () = 4 ar (). If BC =12 cm, then QR =
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