In ΔPQR, side PQ = 32 cm and side PR = 25 cm. What is the measure of side QR ?

Answer: Option E

$$\begin{array}{rl}& QR=\sqrt{{\left(PR\right)}^2-{\left(PQ\right)}^2}\\ & =\sqrt{{25}^2+3^2}\\ & =\sqrt{625-9}\\ & =\sqrt{616}\\ & =2\sqrt{154}cm\end{array}$$