Surface area of cylinders

Surface area of cylinders

As long as we have the diameter or radius and the height of the cylinder, we are able to find its surface area in no time. The surface area of a cylinder is basically adding the surface are of a rectangle and two circles together. The most difficult part is to find the circumference of the circles, which is also one of the sides of the rectangle.

Lessons

  • 1.
    Determine the surface area of the cylinder.
    a)
    height: 7 cm, radius: 3 cm

    b)
    height: 12 cm, radius: 3 cm


  • 2.
    Find the surface area of the tube below.
    find surface area of cylinders

  • 3.
    Find the surface area of the tube below.
    compare surface area of cylinders
    a)
    Which cylinder has a larger surface area?

    b)
    Change the height of cylinder A so that cylinders A and B will have the same surface area.


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