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You blow a bubble in the shape of a sphere. It has a radius of 5 inches. Which choice is closest to its surface area?

Respuesta :

The choices are not given. 
In order to solve this, first get the surface area formula of a sphere.
Surface Area =  4 * pi * r^2
Given that the radius is 5 inches
Then

Surface Area = 4 * pi * 5^2
Surface Area = 100 pi in^2
Surface Area = 314.16 in^2

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