# What are Indices ? Kid Easily Explains Laws of Indices, Powers, Exponents in Detail

Our youngest sister explains Laws of Indices from the basics through to negative and fractional powers. Really good insight into Indices, Powers and Exponents.

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An overview of all the main properties of a circle including worked examples, labelled diagrams & more…

- Parts of a Circle
- Circumference of a circle
- Chords and Arcs
- Segments
- Tangents
- Diameter and Radius
- More on Arcs and Segments
- Sectors

The * circumference* of a circle is just the

To find the * circumference* of a circle we use the formula:

$Circumference = \pi \times diameter$

Or (it can also be written as)

$Circumference = 2 \times \pi \times radius$

A * chord* is a straight line that is drawn from any point around the edge of a circle to any other point around the edge of a circle.

An * arc* is a part of the circumference (around the outside of the circle). It’s just part of the edge sort of like a crust of a pizza slice.

A * segment* is a section of a circle encloses by just a

A * tangent* of a circle is a straight line that just touches the edge of a circle at one singular point.

The * diameter* of a circle is the length from any point on the side of a circle to the other side of the circle, passing the centre point.

The * radius* is half of the

Like we mentioned earlier if you draw on a * chord* to a circle it will create 2

Naturally one will be larger than the other because if they were the same size, the chord would the the diameter and the two segments would be semicircles.

The larger segment is called the

major segmentand the smaller segment is called theminor segment.

Similarly, the circumference also divides into two sections or

arcsa smaller and larger arc - theminor arcand themajor arc.

A * sector* of a circle is just a section of the area of a circle. So it is enclosed by 2

As you have probably already worked out, if there is one * sector* the rest of the circle left over must also be a

If you remember form earlier the larger arc is called the * major arc* and the smaller arc is the

Our youngest sister explains Laws of Indices from the basics through to negative and fractional powers. Really good insight into Indices, Powers and Exponents.

A full insight into binary, hexadecimal, decimal & more. You will easily understand any number base.