SSC MTS 6 Aug 2019 Shift 2 Paper

The radius of a right circular cylinder = 7 cm
⇒ Height = 2 × radius = 2 × 7 = 14 cm
⇒ The curved surface area of the cylinder = $2\mathrm{\pi }\mathrm{rh}$
⇒ The curved surface area of the cylinder $=2\times \frac{22}{7}\times 7\times 14$
⇒ The curved surface area of the cylinder = 616 cm${}^2$
∴ The curved surface area of the cylinder is 616 cm${}^2$ .