I need help with math and i can not find out what the formula is for a cylinder , i thought you would take the radius{15} and plus it by the hight {30} but im not sure so can u plezz help me out??????
2007-04-10 19:43:46 · 7 answers · asked by samantha_johnson2000 2 in Science & Mathematics ➔ Mathematics
There is no "formula for a cylinder."
There are several formulas which are related to cylinders though...
For a cylinder with a base of radius "r", and height "h", the following equations are valid:
Volume = πr²h
Surface Area = 2πr²+2πrh = 2πr(r+h)
Lateral Surface Area = 2πrh
2007-04-10 19:55:26 · answer #1 · answered by Anonymous · 0⤊ 0⤋
volume of cylinder = Pi X (radius)^2 X height
= 22/7 X 15 X 15 X 30
= (22 X 225 X 30) /7
=21214.28
2007-04-11 02:49:01 · answer #2 · answered by PaRtY AnGeL 3 · 0⤊ 0⤋
The formula for the surface area of a triangle is 2 pi r 2 + 2 pi r h
So, if you take 2x(pi) times the radius 15 squared and add it to 2x (pi)x15x30 then you will get the total surface area. (dont forget the units)
2007-04-11 02:52:40 · answer #3 · answered by airbob_23 1 · 0⤊ 0⤋
Do you need the volume of a cylinder or its area or the area of the curved surface?
Volume =,2 * pi * radius* radius* height (where pi = 22/7)
Area = (2*pi *radius* radius) + (2 * pi * radius* height)
Area of curved surface: (2 * pi * radius* height)
hope it helps.
2007-04-11 02:56:39 · answer #4 · answered by Liz 2 · 0⤊ 0⤋
Volume=pie times the radias squared times the height
2007-04-11 02:49:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Cylinder volume = Ïr^2h, where h = height and r = radius.
Cylinder surface area = 2Ïrh + 2Ïr^2 (all surfaces)
2007-04-11 02:49:27 · answer #6 · answered by gp4rts 7 · 0⤊ 0⤋
the formula is Pi*r^2*h
r= radius
h= height
and plug in
2007-04-11 03:15:17 · answer #7 · answered by alex 3 · 0⤊ 0⤋