n7andosabsningtonk n7andosabsningtonk

04-03-2017
Mathematics

contestada

Find the length of the diameter of a sphere with a surface area of 50.27 ft^2.

1.77 ft

3.54 ft

2 ft

4 ft

Respuesta :

wolf1728 wolf1728

05-03-2017

Sphere Surface Area = 4 • π • r²

50.27 = 4 * PI * r^2

50.27 / (4 * PI) = r^2

4.0003594946 = r^2

r = sq root ( 4.0003594946)

radius = 2.0000898716

So the diameter = 4.0001797433

or it is roughly 4 feet

Answer Link

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