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Find the diameter of a cone that has a volume of 104.67 cubic inches and a height of 4 inches. Use 3.14 for pi.

Respuesta :

Answer:

Step-by-step explanation:

The volume of a cone is

[tex]V=\frac{1}{3}\pi r^2h[/tex]

Filling in what we have:

[tex]104.67=\frac{1}{3}(3.14)r^2(4)[/tex]  and simplifying a bit:

[tex]104.67=\frac{1}{3}(12.56)r^2[/tex]

Multiply both sides by 3 to get:

[tex]314.01=12.56r^2[/tex]

Divide both sides by 12.56 to get:

[tex]25.00079618=r^2[/tex] and take the square root of both sides to find the radius:

r = 5

If the radius is 5 and the radius by definition is half the diameter, then the diameter is 10 inches.