2007-01-10 14:10:01 · 2 answers · asked by Kelli K 1 in Science & Mathematics ➔ Mathematics
If you know any one of these three things, you can figure out the other two.
For example, if you know the radius, then
circumfrence = 2*pi*radius
diameter = 2*radius
If you know diameter, then
circumfrence = pi*diameter
radius = diameter/2
If you know circumfrence,
radius = circumfrence / (2*pi)
diameter = circumfrence/pi
2007-01-10 14:14:42 · answer #1 · answered by firefly 6 · 2⤊ 0⤋
What do you want to know???
circumference = pi (3.1416) times the diameter
if the diameter was 10 then the circumference would be
3.1416 times 10 = 31.416
radius is normally used for the area
Area = Pi times radius squared
Area = 3.1416 times ( say radius is 3)
3.1416 times 3 x 3 = 28.27 = area
2007-01-10 14:27:45 · answer #2 · answered by David C 2 · 0⤊ 0⤋