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.


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