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In `triangle ABC`, P and Q are the middle points of the sides AB and AC respectively. R is a point on the segment PQ such that PR: RQ =1: 2. If PR = 2cm, then BC =?
`triangle ABC` में, P और Q क्रमशः भुजाओं AB तथा AC के मध्य बिंदु हैं। R, PQ पर एक बिंदु इस प्रकार है कि PR: RQ =1: 2 यदि PR=2 सेमी, तो BC=

A

4 cm/सेमी

B

2 cm/सेमी

C

12 cm/सेमी

D

6 cm/सेमी

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