I need to solve the following:
I have a picture of a cone that is 9 in. in height and the radius is 3 inches.
I need to find the volume.
Pls Help.
2007-10-19 18:23:57 · 5 answers · asked by theresa b 2 in Education & Reference ➔ Homework Help
Volume of a cone = 1/3 x Pi x (radius)^2 x Height
So, for this question, the volume is 1/3 x (3.14) x 9 x 9 = 84.78 cubic inches.
2007-10-19 18:33:17 · answer #1 · answered by al 2 · 0⤊ 0⤋
I think volume of a cone is V = 1/3 B H; where b is base and h is hieght
So...with radius, you solve for the area of the base A = pi * r ^2
A = Pi * (3^2) = 9Pi
times hieght (9) is 81Pi, and then divided by 3 is 27 Pi.
So... 27 pi ?
2007-10-20 01:33:24 · answer #2 · answered by mayo_maco2008 1 · 0⤊ 0⤋
Volume of Cone=3.14*r^2*h/3
Therfore,
Your cone's volume is 84.78 in^3
to convert into cms 1 in^3=16.39 cm^3
2007-10-20 01:35:50 · answer #3 · answered by luv Man U hate Chelsea 4ever 2 · 0⤊ 0⤋
Hi. This will help. http://math.about.com/od/formulas/ss/surfaceareavol_2.htm
2007-10-20 01:26:37 · answer #4 · answered by Cirric 7 · 0⤊ 0⤋
36.4
i think
im pretty sure thats right
2007-10-20 01:26:56 · answer #5 · answered by Anonymous · 0⤊ 0⤋