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Hat is the surface area of a sphere with a diameter of 16 cm

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The surface area of the hat can be found using the formula A = 4
\pir.
Since the radius is half of the diameter you would divide the diameter by 2 to get a radius of 8. You then substitute r for 6 in the formula and get the surface area.
A = 4
\pi6
A = 804.25
User DanneManne
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