ΔABC is similar to ΔPQR. If ratio of perimeters of ΔABC and ΔPQR is 3:7 and if PQ = 21 cm, then the length of AB (in cm) is? - Study24x7
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3608 followers study24x7 27 Aug 2020 12:33 PM study24x7 study24x7

ΔABC is similar to ΔPQR. If ratio of perimeters of ΔABC and ΔPQR is 3:7 and if PQ = 21 cm, then the length of AB (in cm) is?

A

6

B

14

C

9

D

18

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