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’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 ...

After you start this experience, you will see a circle drawn around your location: In this scenario, everyone who lives in that area would have died. The radius displayed around you depends on ...

The circumference of a circle is the distance around the circle ... The diameter is twice the radius. \(d = 20 \times 2 = 40~\text{cm}\) Circumference = \(40 \times \pi = 125.7~\text{cm}\) ...

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 ...