Triangle $PQR$ is similar to triangle $ABC$, with $\frac{PR}{AC} = \frac{2}{3}$. Also, $AB = 9\text{ cm}$ and the area of triangle $ABC$ is $18\text{ cm}^2$. Diagrams are not drawn to scale.
(a)[1]
Determine the length of $PQ$.
(b)[2]
Determine the area of triangle $PQR$.
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The value is $6$.” …