A third candle, in the shape of a right circular cone, has a volume of 16 cubic inches and a radius of 1.5 inches. What is the height, in inches, of the candle? Round your answer to the nearest inch.

Respuesta :

Given:

Volume of a right circular cone = 16 cubic inches

Radius of the cone = 1.5 inches.

To find:

The height of the cone.

Solution:

The volume of a cone is:

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

Where, r is the radius and h is the height of the cone.

Putting [tex]V=16,r=1.5,\pi=3.14[/tex] in the above formula.

[tex]16=\dfrac{1}{3}(3.14)(1.5)^2h[/tex]

[tex]48=(3.14)(2.25)h[/tex]

[tex]48=7.065h[/tex]

Divide both sides by 7.065.

[tex]\dfrac{48}{7.065}=h[/tex]

[tex]6.794=h[/tex]

[tex]h\approx 7[/tex]

Therefore, the height of the cone is 7 inches.