Question : What will be the curved surface area of a cone of radius 5 cm and a slant height of 30 cm? (Use $\pi=3.14$)

Option 1: 234 m²

Option 2: 715 m²

Option 3: 543 m²

Option 4: 471 cm²

Question : The curved surface area of a cylinder, whose height is 10 cm, is 1320 cm². What is the volume of this cylinder? [Use $\pi$ $\left.=\frac{22}{7}\right]$

Option 1: 1388 m³

Option 2: 0.001368 m³

Option 3: 0.1386 m³

Option 4: 0.01386 m³

Question : Find the curved surface area of a cone whose radius of the base is 7 cm and slant height is 8 cm. [Use $\pi=\frac{22}{7}$]

Option 1: 132 cm²

Option 2: 198 cm²

Option 3: 154 cm²

Option 4: 176 cm²

Question : The radius of a right circular cylinder is thrice of its height. If the height of the cylinder is 3.5 cm, what is the volume of the cylinder?

Option 1: 1124.25 cm³

Option 2: 1324.75 cm³

Option 3: 1468.25 cm³

Option 4: 1212.75 cm³

Question : A cone and a cylinder have the same height and the radius of the cone is twice of the radius of the cylinder: What is the ratio of the volume of the cone to that of the cylinder?

Option 1: 2 : 5

Option 2: 4 : 5

Option 3: 3 : 2

Option 4: 4 : 3