The surface area of a sphere

12 questions

1. Match each letter to the name of the shape.
2. Which calculation gives the surface area of a cylinder of radius 2 cm and height 9 cm?
3. The area of a circle is 19.6 cm². What is the radius of the circle? Give your answer correct to 1 decimal place.
4. A cylinder has a radius of 3 mm and a height of 10 mm. The volume of the cylinder, in terms of \pi, is ___\pi mm³.
5. A cylinder has a radius of 3 mm and a height of 10 mm. The surface area of the cylinder, in terms of \pi, is ___\pi mm².
6. The volume of a cube is 125 cm³. The surface area of the cube is ___ cm².
7. Which of these 3D shapes is a sphere?
8. Complete the formula for the surface area of a sphere, with a radius of r: surface area = ___\pi r^2.
9. Match each sphere to its surface area.
10. A sphere has a surface area of 196𝜋 m². The radius of the sphere is ___ m.
11. The radius of this hemisphere is 6 cm. Work out the total surface area of the hemisphere. Give your answer correct to 3 significant figures.
12. The total surface area of this hemisphere is 192𝜋 cm². The radius of the hemisphere is ___ cm.

License: OGL