Let ∆ABC ∼ ∆QPR and ar (∆ABC) : ar (∆PQR) = 9 : 4. If AB = 9 cm, BC = 6 cm and AC = 12 cm then QR is equal to:

Let ∆ABC ∼ ∆QPR and ar (∆ABC) : ar (∆PQR) = 9 : 4. If AB = 9

1.	Let ∆ABC ∼ ∆QPR and ar (∆ABC) : ar (∆PQR) = 9 : 4. If AB = 9 cm, BC = 6 cm and AC = 12 cm then QR is equal to:
A.	8 cm
B.	12 cm
C.	9 cm
D.	16 cm
Answer» B. 12 cm

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Let ∆ABC ∼ ∆QPR and ar (∆ABC) : ar (∆PQR) = 9 : 4. If AB = 9 cm, BC = 6 cm and AC = 12 cm then QR is equal to:

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