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What is the surface area of a sphere with a 3 cm radius?

Updated: 4/28/2022

What is the surface area of a sphere with a 3 cm radius?

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wilrusty

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4y ago

Best Answer

The answer is 36π or approximately 113.1 cm.

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Anonymous

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4y ago
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Q: What is the surface area of a sphere with a 3 cm radius?
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Oh, dude, you just need to find the radius first, which is half of the diameter, so that's 9 cm. Then you use the formula for the surface area of a sphere, which is 4πr^2. Plug in 9 for r, square it, multiply by 4, and then multiply by π. That gives you a surface area of 1017π square cm, or about 3190 square cm. Easy peasy!


What is the surface area of a sphere whose diameter is 18 cm?

Oh, dude, you're hitting me with some math here. So, the formula for the surface area of a sphere is 4πr², where r is the radius. Since the diameter is 18 cm, the radius is half of that, which is 9 cm. Plug that into the formula, and you get a surface area of 1017π cm². But like, who's really gonna measure that in real life, am I right?