What is the volume of a sphere with a surface area of ​ 100π ​ ft²?


3313π ​ ft³

4823π ​​ ft³

16623π ​ ft³

133313π ft³

Respuesta :

Answer:

Option C is correct.

volume of sphere is, [tex]166\frac{2}{3} \pi[/tex] cubic ft

Step-by-step explanation:

Formula for Surface area(S.A) of sphere is given by :

[tex]S.A = 4 \pi r^2[/tex]

where r is the radius of the sphere.

As per the given statement:

Surface Area of sphere(S.A) = [tex]100 \pi[/tex] square ft.

Substitute the given values we have;

[tex]100 \pi = 4\pi r^2[/tex]

Divide both sides by [tex]4 \pi[/tex] we have;

[tex]25 = r^2[/tex]

or

[tex]r = \sqrt{25} = 5 ft[/tex]    

To find the volume of sphere:

Volume of sphere(V) is given by:

[tex]V = \frac{4}{3} \pi r^3[/tex]

Substitute the given values we have;

[tex]V = \frac{4}{3} \pi (5)^3[/tex]

or

[tex]V = \frac{4}{3} \pi 125[/tex]

[tex]V = \frac{500}{3} \pi[/tex] ≈ 166.23 cubic ft

Therefore, the volume of sphere is, [tex]166\frac{2}{3} \pi[/tex] cubic ft