2026 EVG P1 Q18

Two similar prisms, made of the same material, have masses 135 g and 320 g. The surface area of the smaller prism is \(40.5\text{ cm}^2\) and the volume of the larger prism is \(576\text{ cm}^3\). Determine

1. the surface area of the larger prism,[2]
2. the cost of painting the larger prism if it costs \$48.60 to paint the smaller prism,[1]
3. the cross-sectional area of the smaller prism if it has a height of 12 cm.[2]