Question : The area of the base of a cone is 616 cm². If its slant height is 20 cm, then what is the total surface area of the cone? [Use $\pi$ = $\frac{22}{7}$]

Option 1: 1352 cm²

Option 2: 1296 cm²

Option 3: 1496 cm²

Option 4: 1524 cm²

Question : What is the difference between the total surface area and the curved surface area of a cone whose radius is 35 cm? (Take $\pi=\frac{22}{7}$)

Option 1: 3850 cm²

Option 2: 3704 cm²

Option 3: 3750 cm²

Option 4: 3675 cm²

Question : What is the radius of a normal cylinder whose height is 21 cm and curved surface area is 1386 cm²?

Option 1: 10.5 cm

Option 2: 3.5 cm

Option 3: 7 cm

Option 4: 10 cm

Question : What is the curved surface area (in cm²) of a cylinder having a radius of base as 14 cm and height as 10 cm?

Option 1: 440

Option 2: 880

Option 3: 220

Option 4: 1320

Question : The radius of a right circular cone is 3 cm and its height is 4 cm. The total surface area of a cone is:

Option 1: 48.4 cm²

Option 2: 64.4 cm²

Option 3: 96.4 cm²

Option 4: 75.4 cm²