Question : The total surface area of a cylinder whose radius is 6 cm and height is 8 cm is: (Use $\pi=\frac{22}{7}$)

Option 1: 528 cm²

Option 2: 575 cm²

Option 3: 658 cm²

Option 4: 625 cm²

Question : If the slant height and radius of a right circular cone are 28 cm and 21 cm, respectively, then the total surface area of the right circular cone (in cm²) is: (Take $\pi=\frac{22}{7}$)

Option 1: 3234

Option 2: 3342

Option 3: 3243

Option 4: 3324

Question : The sum of the radius of the base and the height of a cylinder is 42 m. If the total surface area of the cylinder is 6336 m², find the curved surface area of the cylinder correct to two places of decimals (use $\pi=\frac{22}{7}$).

Option 1: 2157.43 m²

Option 2: 2571.43 m²

Option 3: 2715.43 m²

Option 4: 2517.43 m²

Question : A right pyramid stands on a square base of diagonal $10\sqrt2$ cm. If the height of the pyramid is 12 cm, the area (in cm²) of its slant surface is:

Option 1: 520 cm²

Option 2: 420 cm²

Option 3: 360 cm²

Option 4: 260 cm²

Question : The radius of a sphere is 3.5 cm. What is the total surface area of the sphere?

Option 1: 154 cm²

Option 2: 77 cm²

Option 3: 231 cm²

Option 4: 188 cm²