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Is a cylinder a prism?

Discussion in 'Mathematics' started by Fruit Cake, Jan 26, 2008.

  1. gnulinux

    gnulinux Occasional commenter

    Whether, or not, a cylinder is a prism is a matter of definition. It is not open to opinion. Definition is a fundamental concept in mathematics.
     
  2. Maths_Shed

    Maths_Shed Occasional commenter

    Do your chemistry GCSE and you are told electrons are in spherical shells around a nucleus, do your A-level and find that's not actually true and you learn something else, do your degree and you find that wasn't true either. In each case the description is appropriate and works as far as the pupils are concerned.
     
  3. sistersheart

    sistersheart New commenter

    Also teaching 3D shapes in our ks1. From definition it's not.
     
  4. adamcreen

    adamcreen Occasional commenter

    But it behaves like a prism, the volume formula is the same as for prism, so basically yes.
     
    strawbs likes this.
  5. UKExceED

    UKExceED New commenter

    Perhaps start with deciding whether a circle (cross-section of the cylinder) is a polygon. You can have fantastic debates with your children about this.

    Most people on here are correct though... Technically it is not a prism although it does behave like one.
     

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