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 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 : A toy is in the shape of a cylinder surmounted by a hemisphere. The total height of the toy is 15 cm and the radius of the hemisphere is 6 cm. What is the volume of the toy?

Option 1: $496\pi$ cm³

Option 2: $476\pi$ cm³

Option 3: $458\pi$ cm³

Option 4: $468\pi$ cm³

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 : The volume of a right circular cone is 3080 cm³. If the radius of its base is 7 cm, then what is the height of the cone? $\left[\right.$ Use $\left.\pi=\frac{22}{7}\right]$

Option 1: 60 cm

Option 2: 80 cm

Option 3: 120 cm

Option 4: 90 cm