Q1. A sphere has a diameter of 20mm. Calculate:



  • The surface area of the sphere


  • The volume of the sphere

  • The surface area to volume ratio of the sphere


Q2. Another sphere has a diameter of 10 mm. Calculate: 



  • The surface area of this second sphere



  • The volume of the second sphere

  • The surface area to volume ratio of the sphere


In both cases you will need to know the surface area and volume equations for a sphere. You should go to the "Useful Mathematical Formulae" section to obtain this information.


Back to >> Questions <<

Go back to >> Exchange Surfaces <<