In the figure, XY||QR,PQXQ=31 and PR=6.3cm. Find YR
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Q2
In a right triangle PQR, right angled at Q. X and Y are the points on PQ and QR such that PX : XQ = 1 : 2 and QY : YR = 2 : 1. Prove that 9(PY2+XR2)=13PR2.
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Q3
PQR is a right angle triangle right angled at q. X and Y are points on PQ and QR such that PX: XQ = 1:2 and QY : YR = 2:1. prove that 9(PY^2 + XR^2) = 13PR^2