SSC CGL Model Paper 20

Question : 68 of 100

Marks: +1, -0

ΔABC is similar to ΔPQR. If ratio of perimeter of ΔABC : perimeter of A PQR is 5:9 and if PQ = 45 cm, then the length of AB (in cm) is

Solution:

According to the question,
ΔABC ~ ΔPQR

∴

{\Perimeter \of \Δ\ABC }/{\Perimeter \of \Δ\PQR }=\AB/\PQ

⇒

5/9=\AB/45

∴

AB={5×45}/9=25\cm

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