A circle with a radius of 11.64 meters has an area of 425.653131998 square meters.
Radius of a circle = diameter/2
you have multiplythe radius by 2 to get the diameter
circumference= pi(3.14) by the diameter. if your given the radius, double the radius and times by pi.
The answer depends on what information you are given. If you know the circumference, then divide by Pi and that is the diameter. Half of the diameter is the radius. If you don't know anything about the circle, you would need to measure and find the diameter.
If you know the diameter of a circle you simply divide the diameter by 2 to get the radius. This is because the diameter is twice the length of the radius. For example, if the diameter is 10 divide by two which will give you the answer of 5 for the radius. Half it because: diameter/2 = radiusTo answer your question you must have a certin diameter. You must go 2pie times your diameterThe perimeter of a circle is called the circumference. The circumference is the distance around the circle.The circumference, C, of a circle is given by the formulawhere r is the radius of the circleA radius is half the diameter
Radius = Diameter/2.
Radius of a circle = diameter/2
If you are given the radius of the circle, you can use the formula: diameter = 2*radius If you are given the circumference of the circle, you can use the formula: diameter = circumference/pi
if you are given the circle's "height" then that is the diameter. the diameter is twice the length of the radius, so divide the height by two and you will get the radius.
The radius of a circle is half of the diameter! So, if the diameter was four inches, the radius would be two inches!
Double the radius
Diameter =2R(whare R-Radius of the circle)
you have multiplythe radius by 2 to get the diameter
you cant: pi is the same for any circle - 3.1415... the diamter or the radius has to be given diameter divided by two equals the radius the radius times two equals the diameter
In order to fully understand what the radius of a given circle is, you must know the diameter. The diameter is the distance across the circle through the center. The radius of a circle is half the diameter. For example, if the diameter of a circle is 8 inches, then the radius would be 4 inches.
You times the radius by 2.
Divide the diameter by 2.