Area, SMB-011 A triangular prism has the following dimensions (all measurements are in metres). Draw a net of the solid (1 mark) --- 5 WORK AREA LINES (style=lined) --- Find the surface area of the prism. (2 marks) --- 4 WORK AREA LINES (style=lined) --- Show Answers Only i. ii. \(348\ \text{m}^2\) Show Worked Solution i. ii. \(\text{S.A.}\) \(=2 \times (5 \times 18) + (8 \times 18) + 2 \times (\dfrac{1}{2} \times 8 \times 3) \) \(= 2(90) + 144 + 2(12) \) \(=348\ \text{m}^2\)