Looks to us like it's another circle, concentric with the first one,
with radius of sqrt(5) = 2.236 . (rounded)
Radius of a circle= Perimeter of the circle/2*pi Radius is half the diameter Radius is the length of a straight line from the center point of the circle to the edge of the circle.
If you are given a chord length of a circle, unless you are given more information about the chord, you can not determine what the radius of the circle will be. This is because the chord length in a circle can vary from a length of (essentially) 0, up to a length of double the radius (the diameter). The best you can say about the radius if given the chord length, is that the length of the radius is at least as long has half half the chord length.
radius = diameter/2
A radius is a line drawn from the centre of a circle to the edge of that circle. It is half the length of the diameter of the circle.
It is the diameter which is twice the radius giving a length of 8 cm
A circle with a radius of 2.
The radius of a circle is the length of the line from the center of the circle to any point on its edge.
Length of a radius is always half the diameter of a circle. This means that the circle has a radius of 2cm.
The diameter of any circle is twice its radius
The length of a radius of a circle is half of the diameter of the same circle. So, diameter is always twice the radius.
diameter = 2 X radius
the radius is half the diameter. radius is half of 11. Which is 5.5.
The diameter of a circle is twice its radius.
The radius is half the diameter.
The radius is 1/2 of the diameter. A diameter of 10 has a radius of 5.
the radius is half the length of the diameter of a circle.
The radius of the circle works out as 5 units in length