help
2007-04-03 05:04:32 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
u use the base of the cone and work out the area using pie r squared. then u mutily this by the percumdicular hight of the cone. (which is the distance from the base straight up 90 degrees to the top of the cone) then u mutiply the hole thing be a third.
2007-04-03 05:24:11 · answer #1 · answered by mikey 3 · 0⤊ 0⤋
V = (1/3)*bh, where b is the area of the base and h is the height. In the case of a cone with a circular base, b = pi*r^2, where r is the radius of the circular base, so the formula can also be written as V = (1/3)pi(r^2)h.
2007-04-03 12:10:55 · answer #2 · answered by DavidK93 7 · 0⤊ 0⤋
If you know the formula for a cylinder (v = Ï* r^2 * h), calculate that first using your radius and height. Then take a third of that value.
Easy!
2007-04-03 12:27:39 · answer #3 · answered by birdwoman1 4 · 0⤊ 0⤋
(1/3)*pi*r² h
2007-04-03 12:11:35 · answer #4 · answered by Kathleen K 7 · 0⤊ 0⤋