We know that 2πr=circumference (or πxdiameter)
So simply re-arrange the equation to get r=circumference/2π
Now that you have r, πr^2=area
The circumfrence is like a perimeter. It is the area around a circle. You can find the circumfrence of a circle by using this formula. Pi x R2 or Pi times the radius squared.
The circumference of a circle is (diameter) multiplied by (pi).
If you mean of a circle then they are as follows:- Circumference = 2*pi*radius or diameter*pi Area = pi*radius squared
two times the radius times pi
the formula to find the circumference of a circle is pi times the diameter. So basically take the diameter and multiply it by 3.14 and that's the circumference.
Divide the area by pi then square root your answer which will give the radius of the circle and use 2*pi*radius to find the circumference.
The circumfrence is like a perimeter. It is the area around a circle. You can find the circumfrence of a circle by using this formula. Pi x R2 or Pi times the radius squared.
It depends on what information you have: radius, diameter, lengths of tangents from a point outside the circle, length of chord and its distance from the centre, etc. Also, the term is circumference, not circumfrence.
The circumference of a circle is (diameter) multiplied by (pi).
If you do not have the area, what do you have? The radius is half the diamiter The radius is PieR2 Worked backwards if you know the circumfrence.
the circumfrence of a circle is pi times it's radius squared.
divide by pi which is 3.1415927 and on and on
If you mean of a circle then they are as follows:- Circumference = 2*pi*radius or diameter*pi Area = pi*radius squared
If you know the diameter of the circle, multiply that by Pi (about 3.1416). The result is the circumference.
radius = circumference/(2*pi)
By multiplying the diameter by pi, since the circumference of a circle is 3.14 times the diameter.
Circumfrence = pi * diameter It can be experimentally derived very easily.