The volume of a cylinder is 300x(pi) cubic inches. If the height of a cone with the same base is 12 inches, what is the diameter of the cone? Can someone please explain or help how to get an answer for this?(Crying)(Angry)(Headbang)

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- November 1st 2009, 02:28 PMdogbuck12volume cylinder/cone ?
The volume of a cylinder is 300x(pi) cubic inches. If the height of a cone with the same base is 12 inches, what is the diameter of the cone? Can someone please explain or help how to get an answer for this?(Crying)(Angry)(Headbang)

- November 1st 2009, 04:56 PMdogbuck12
Repost:

The volume of a cylinder is 300∏ cubic inches. If the height of a cone with the same base is 12 inches, what is the diameter of the cone? Can someone please explain or help how to get an answer for this?(Crying)(Angry)(Headbang)

- November 1st 2009, 07:58 PMukorov
let r be radius of the cone, h be its height

(pi)(r^2)(h) = 300pi

(r^2)(12) = 300

r^2 = 25

r = 5

hence its diameter is 10 inches