A circular shape or object is one that is in the form of a circle. How many of these circular objects can you name? The radius (or ‘radii’ for plural) is the length of a straight line from the ...

It is a minor arc as it is less than halfway around the circle. C is a radius. This is the distance from the centre of the circle to the circumference. D shows the circumference. This is the ...

It’s important to note that the radius is not a perfect circle but a series of straight ... You can move the point around the map to adjust the radius or delete it entirely by clicking the ...

A model of the famous toy known as a spirograph. A circle of radius r (see blue circle below) is allowed to roll around the inside of a circle of radius R (see black circle below). We assume that the ...