Formula for surface of sphere is 4 X pi X radius squared.
4 x 4squared = 64 pie = 201.0622498
so your answer is
64 pie or 201.0622498
(Either would work)
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The surface area of a sphere with a radius of 13ft is about 2,123.7ft2
The surface area of a sphere with a radius of 5m is 314.2m2
-- You have to ask somebody for the radius of the sphere, in meters. If they tell you the diameter instead, then the radius is 1/2 of the diameter, in meters. -- Multiply (4) times (pi) times (the radius)2 . That's the surface area of the sphere, in square meters. -- Round the answer to the nearest square meter.
The surface area of a sphere with radius 6 is: 452 square units.
The surface area is approximately 300m²- APEX