**The Circle**

Facts about the circle:

- It’s round
- It’s a shape
- It’s symmetrical
- It’s 360 degrees
- The outside of a circle (perimeter) is called the circumference
- It is 2D
- It has no corners
- It always has a centre point
- It has no angles
- The diameter is always double the radius
- The radius is always half the diameter
- It can be any size
- A circle has two faces
- It can roll
- Half a circle is called a semi-circle
- A circle is part of the following 3D shapes: Sphere, Cylinder, Cone
- A quarter of a circle is called a quadrant
- You can measure the circumference with a string
- A piece of the circumference is called an arc
- The length of the circumference is the diameter multiplied by Pi (3.14)
- A diameter is a straight line going straight through the centre point that touches the circumference twice
- A radius is a straight line from the centre point to the circumference
- A cord is a straight line that goes from one point of the circumference to another without touching the centre point
- A sector is a wedge of the circle that touches the centre point, has 2 radii and an arc
- All its 3D shapes can roll

Can you add any more facts about the circle? Post a comment below.

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*Related*

Here’s an other fact on the circle: All points on the edge of the circle are the same distance to the centre point.

A circle is the only one sided shape with an area

=^_^=

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