SSC CHSL Model Paper 17

Question : 51 of 100

Marks: +1, -0

QUANTITATIVE APTITUDE

ΔABC ~ ΔPRQ and PQ = 4 cm, QR = 7 cm and PR = 8 cm. If ar(ΔABC) : ar(ΔPQR) = 1 : 4, then AC is equal to :

Solution:

ΔABC ~ ΔPRQ

{\ar(\Δ\ABC)} /{ \ar(\Δ\PQR) }= 1/ 4

(\AC)^2/\PQ^2=1/4

\AC^2/4^2=1/4

\AC=2\cm

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