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# Geometry.

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The axis of the sphere below is 14 units in length. What is the surface area of the sphere? A. 256pi units^2 B. 72pi units^2 C. 196pi units^2 D. Cannot be determined

May 14, 2022
edited by Guest  May 14, 2022

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The axis is just another word for the diameter. Therefore the diameter is 14 units, meaning the radius is 7 units.

Now you can use the formula $$\text{surface area} = 4\pi (\text{radius})^2$$ to finish it off.

May 14, 2022