o is a point inte interior of triangle PQR.Prove thatOP+OQ+OR1BY2(PQ+QR+PR)
Here is the link for the answer a similar query:
https://www.meritnation.com/ask-answer/question/if-o-is-any-point-in-the-interior-od-triangleabc-prove-oa/lines-and-angles/397377
https://www.meritnation.com/ask-answer/question/if-o-is-any-point-in-the-interior-od-triangleabc-prove-oa/lines-and-angles/397377