Q: How do you find the surface area of a sphere?

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Surface area of a sphere = 4*pi*radius2

Surface area of a sphere = 4*pi*radius squared

Surface area = 4*Pi*radius2

Surface area of a sphere = 4*pi*radius2 Surface area = 4*pi*42 => 201.0619298 Surface area of the sphere = 201 square units correct to three significant figures.

The surface area of the sphere with the radius doubled is 200 units2.---> Confirmed

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Surface area of a sphere = 4*pi*radius2

Surface area of a sphere = 4*pi*radius squared

The surface area of a sphere is equal to 4 x Pi x radius2

The surface area is 1,385.4 cm2

Surface area = 4*Pi*radius2

The surface area of every sphere is (4 pi) times (the radius squared).Knowing that, you can find the surface area of not only the one you'reasking about right now, but of every sphere that ever was, is, or will be !

Surface area of a sphere = 4*pi*radius2 Surface area = 4*pi*42 => 201.0619298 Surface area of the sphere = 201 square units correct to three significant figures.

The surface area of the sphere with the radius doubled is 200 units2.---> Confirmed

Surface area of a sphere = 4*pi*radius2 square units

Use the formula for volume to solve for the radius of the sphere and then plug that radius into the formula for the surface area of a sphere.

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To do this question, we have to ask ourself, what formula do you use to find the surface area of a sphere. The answer should be known to you, but it is 4πr2. Since we know how to find the surface area for a full sphere, then finding the surface for a half sphere is just half the job. You use the formula for the full sphere 4πr2, and divide it by 2... so (4πr2) / 2 . Voila!