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10-03-2018
Mathematics

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Find the surface area of the sphere to the nearest square unit. Use a calculator.
the inside is 2in

A.13 in.2

B.50 in.2

C.6 in.2
D.3 in.2

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sqdancefan sqdancefan

10-03-2018

The area of a sphere is given by the formula
.. A = 4πr^2
For a radius of 1 in, the area is
.. A = 4π(1 in)^2 = 4π in^2 ≈ 13 in^2 . . . . . selection A

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