The radius of a circle is any straight line from the centre of the circle to its circumference. The radius can also refer to the length of this line.
Chat with our AI personalities
The radius of a circle is a straight line from the centre of the circle to its circumference.
It is the radious. I'm pretty sure
I don't know if this is what you are after, butthe circumference (not circumstance) C is 2*pi*r where r is the radius (not radious, as you spell it).
It is not clear whether you want the formula of some aspect (area or circumference) of a circle when given its radius or a formula for its radius when given some characteristic measure of the circle.
What is the radius of a circle with a diameter of 4.56 m? The radius is half the diameter. Radius r = 2.28 m