Triangle $PQR$ has vertices $P\left( 1,1 \right)$, $Q\left( 3,2 \right)$ and \(R\left( 2,4 \ri

Question

Triangle $PQR$ has vertices $P\left( 1,1 \right)$, $Q\left( 3,2 \right)$ and $R\left( 2,4 \right)$. Calculate the length of $PQ$, $QR$ and $PR$, giving your answers correct to $3$ significant figures. What can you conclude about triangle $PQR$? Explain.

Accepted Answer

(i) $PQ=2.24$ units, $QR=2.24$ units, $PR=3.16$ units (ii) Triangle $PQR$ is a right angled triangle

Coordinate Geometry: Triangle Side Calculations and Conclusion

Coordinate Geometry: Triangle Side Calculations and Conclusion

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