2007-11-02 16:21:23 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
V1 = (4/3 )π r ³
V2 = (4/3) π (3r)³
V2 = (4/3) π (27) r³
V2/V1 = 27
V2 = 27 V1
2007-11-03 01:01:40 · answer #1 · answered by Como 7 · 0⤊ 1⤋
9. the quantity of a sphere is 4/3 pi r^3, so in case you triple the radius, the quantity is larger via 3^3 or 27 7. An icosahedron has 20 faces. So there are 20 alternatives (a million-20). interior that team there are 7 top numbers: 2, 3, 5, 7, eleven, 13, 17. (2 is a important, yet a million isn't). So the prospect of rolling a important variety is 7 /20.
2016-11-10 02:59:36 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Volume of a sphere = (4/3)pi(r^3)
If for a radius r, the volume is V1 = (4/3)pi(r^3), plugging in 3r yields V2 = (4/3)pi((3r)^3) = 27*(4/3)pi(r^3)
You can thus see that V2 = 27V1
2007-11-02 16:24:08 · answer #3 · answered by Knows what he is talking about 3 · 1⤊ 0⤋
volume-4/3XpiXr^3
if the radius is 3 times large, the volume goes up 3^3 or 9 times.
2007-11-02 16:26:53 · answer #4 · answered by eric l 6 · 0⤊ 1⤋
according to my son, scheisenkopf, only a circle has a radius.
my take---depends on the length of the sphere---could be wrong.
2007-11-02 16:27:48 · answer #5 · answered by Anonymous · 0⤊ 1⤋