Chapter: Mensuration· Mathematics Part 2 (Geometry)
Answer: 462 cm\(^2\)
A solid hemisphere has a curved surface \((2\pi r^2)\) and a flat circular face \((\pi r^2)\).
TSA \(= 3\pi r^2 = 3 \times \dfrac{22}{7} \times 7 \times 7 = 3 \times 154 = 462\) cm\(^2\).