Answered

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The surface area of a sphere is .What is the surface area of the sphere that has a diameter of 20 inches?

Sagot :

Remember that the formula for the surface area of a sphere is:

[tex]S=4\pi r^2[/tex]

If a sphere has a diameter of 20", the radius is 10".

Using this and the formula, we'll get:

[tex]\begin{gathered} S=4\pi(10^2) \\ \rightarrow S=1256.64in^2 \end{gathered}[/tex]

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