The surface area of a cone

12 questions

1. Match each measurement to the correct formula.
2. Work out the volume of a sphere with radius 1.4 m. Give your answer correct to 2 decimal places.
3. A sphere has a radius of 9 mm. The volume of the sphere, in terms of 𝜋, is ___𝜋 mm³.
4. Which of these calculations finds the volume of a hemisphere with a radius of 6 cm?
5. The volume of a hemisphere with a radius of 6 cm, in terms of \pi, is ___\pi cm³.
6. The volume of a hemisphere is 1152𝜋 cm³. The surface area of the hemisphere, in terms of 𝜋, is ___𝜋 cm².
7. Which of these diagrams is a cone?
8. The curved surface of this cone is unfolded into a circular sector. Match each measurement to its value.
9. Calculate the area of the curved surface of this cone. Give your answer correct to 3 significant figures.
10. Calculate the total surface area of this cone. Give your answer correct to 3 significant figures.
11. The slant length of this cone is ___ cm. Give your answer correct to 2 decimal places.
12. The total surface area of this cone is ___ cm². Give your answer correct to 3 significant figures.

License: OGL