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The surface area of a sphere can be approximated as followed: 4(pi symbol)r^2 ; where r is the radius of the sphere; (pi symbol) is a constant that's roughly equal to 3. Using the approximation as told, calculate the surface area of a sphere with a radius of 2 meters. [the answers to choose from are: 9m^2, 24m^2, 16m^2, 40m^]

 Dec 15, 2021
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\(SA=4\pi r^2\\ \pi\approx 3\quad r=2\\ SA\approx 4*3* 2^2\\\)

 

You can finish it.

 Dec 15, 2021

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