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triangle ABC ~ triangle RQP and AB = 4 c...

`triangle ABC ~ triangle RQP` and AB = 4 cm , BC = 6 cm and AC = 5 cm. If `ar(triangle ABC) : ar (triangle PQR)=9:4`, then PQ is equals to :
`triangle ABC ~ triangle RQP` है तथा AB = 4 सेमी, BC = 6 सेमी और AC = 5 सेमी है | यदि `ar(triangle ABC) : ar (triangle PQR)=9:4`,है, तो PQ किसके बराबर है ?

A

`20/9` cm

B

`8/3 ` cm

C

4 cm

D

`10/3` cm

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