A waffle ice cream cone is pictured above. If the volume of the cone is 14.4pi cubic inches, what is the diameter of the cone (in inches)?
Answer is 6.
The volume of a cone is found by using the formula V= 1/3 x pi x r^2 x h, where r is the radius of the circular base and h is the height. Input the known data and solve for r.
14.4pi = 1/3 pi r^2 (4.*)
14.4 = 1.6 r^2
9 = r^2
3 = r
or, d, the diameter is 6.
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