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.
radius=13 area=40.82 circumfrence=8.28025477707
Multiply pi by the diameter.
Pi x the diameter of the circle will hive you the circumference. The diameter is double the radius so the answer to your question is pi2r.
Approximately 86.7 units squared.
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.
Pi (3.141...) is used for circles, and circles only. You use it to find the area and circumfrence.
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.
radius=13 area=40.82 circumfrence=8.28025477707
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.
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.
Multiply pi by the diameter.
Pi x the diameter of the circle will hive you the circumference. The diameter is double the radius so the answer to your question is pi2r.
Approximately 86.7 units squared.
The area of a circle that has a circumference of 18 is 25.78 inches squared.
divide by pi which is 3.1415927 and on and on
The circumference of a circle is (diameter) multiplied by (pi).