1.

Suppose ΔABC ∼ ΔRPQ and \(\frac{{ar\left( {{\rm{\Delta }}ABC} \right)}}{{ar\left( {{\rm{\Delta }}PQR} \right)}} = \frac{1}{4}.\) If PQ = 4 cm, QR = 6 cm and PR = 7 cm, then AC is equal to∶

A. 2 cm
B. 4 cm
C. 3 cm
D. 3.5 cm
Answer» D. 3.5 cm


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