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triangle ABC ~ triangle EDF and ar(tria...

`triangle ABC ~ triangle EDF` and `ar(triangle ABC) : ar(triangle DEF) = 4 : 9`. If AB = 6 cm, BC = 8 cm and AC = 10 cm, then DF is equal to :
`triangle ABC ~ triangle EDF` और `ar(triangle ABC) : ar(triangle DEF) = 4 : 9` है। यदि AB = 6 सेमी, BC = 8 सेमी तथा AC = 10 सेमी है, तो DF का मान क्या होगा ?

A

18 cm

B

9 cm

C

15 cm

D

12 cm

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