2006-11-14 19:00:34 · 17 answers · asked by danisha 1 in Science & Mathematics ➔ Mathematics
Then all that one can do is
'go around that circle (as many times as one likes) and measure the perimeter P'
Then use the relation [P = 2 pi x r]
to calculate its radius r like:
r = Perimeter/2 pi
2006-11-14 19:06:59 · answer #1 · answered by usarora1 3 · 0⤊ 0⤋
If no information is given on the size of the circle then all you can do is give a general answer that relates to circles in general such as: radius = one half the diameter, or radius = circumference / 6.283 other than that you don't have enough info to give a specific answer.
2006-11-15 03:09:32 · answer #2 · answered by waldon l 2 · 0⤊ 0⤋
if they didn't not provide any information, you cannot calculate the radius of the circle.
please remember that to do any calculation you need information.
if your question was how to find the radius of the circle..just measure it by a ruler
2006-11-15 08:44:38 · answer #3 · answered by grandpa 4 · 0⤊ 0⤋
I consider here that you have a circle visible, but no numerical information. So what you can do it to trace the circle out on a cardboard, cut the cardboard along the tracing,so as to make a circular piece of the cardboard. mark a spot along its periphery. touch the spot to the ground, keeping the cardboard disk vertical and slowly roll it like a wheel. mark the starting point. stop just when the spot touches ground again and mark stopping point. the distance between these two points is the perimeter of the circle. Given that Perimeter=2*Pi*Radius, calculate Radius.
I hope this answers your query.
2006-11-15 03:19:08 · answer #4 · answered by ravish2006 6 · 0⤊ 0⤋
The division of area of a circle with perimeter would always give you the value 'pi/2'.
May be this information helps.
2006-11-15 04:57:26 · answer #5 · answered by Paritosh Vasava 3 · 0⤊ 0⤋
Circumference = 2*Radius*pie
Measure the circumference with a string and solve for the radius.
2006-11-15 04:25:47 · answer #6 · answered by ve1luv 2 · 0⤊ 0⤋
without ANY information whatsoever you cannot find the radius of the circle.
2006-11-15 03:08:15 · answer #7 · answered by raj 7 · 0⤊ 0⤋
assuming there is no picture either for the circle it is tough but if area is given you are still find radius as
A = pi*r*r
2006-11-15 03:16:31 · answer #8 · answered by sandywin2006 1 · 0⤊ 0⤋
Area of a circle is pi r squared. So you derived the raduis. Just give the formula
2006-11-15 03:08:18 · answer #9 · answered by ping2 1 · 0⤊ 0⤋
there are ways to find the radius of the circle:
ONLY in some situations. like acceleration speed time angle force that will be centrifigal force.
they can relate to find the radius thus the curcumfrence
else????????????
2006-11-15 06:00:58 · answer #10 · answered by mich01 3 · 0⤊ 0⤋