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Give the answer in terms of πwhat is the surface are ?

Give the answer in terms of πwhat is the surface are ?-example-1
User FogleBird
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The given sphere has a diameter d=7 cm.

The surface area of a sphere is given by the formula:


SA=4\pi r^2

Where r is the radius, it is half the diameter. So r=3.5 cm.

By replacing this value, we can find the surface area:


\begin{gathered} SA=4\pi(3.5cm)^2 \\ SA=4\pi *12.25cm^2 \\ SA=49\pi\text{ }cm^2 \end{gathered}

The surface area of the sphere is 49pi square centimeters.

User Philihp Busby
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