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Not too long ago: Someone realized he or she needs to weigh 78.73 kilograms (kg) to have a bmi of 30.0

Calculate the surface area of a sphere

The surface area of a sphere is the area that surrounds the sphere. The surface of the earth, where we live, is an example of the surface area of a sphere. In this calculation you can calculate surface areas like that.
0 2011/09/29 | Is something broken?

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Bugs & Fixes

This calculation was last reviewed or fixed: 2011/09/29

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Other calculations in geometry (area, volume etc)

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Calculate the surface area of a cone
With this calculation you can calculate the surface area of a cone.
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Use this calculation to calculate the surface area of cubes and bricks.
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Ever wondered how much you would have to paint if you were to repaint the pyramids? No? Well, you can calculate surface areas of pyramids (with four-sided bases) here if you ever find the need.
Calculate the surface area of a cylinder
If you would unfold a cylinder it would become a rectangle. Calculate the surface area of a cylinder (i.e. that rectangle) here.

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