Parallel

A set of lines or curves that never meet (no matter how long they are extended) are said to be parallel.

They will always be the same distance apart.

Scale Drawings

Many real-life objects are too big or too small to be drawn as they really are.

Scale drawings allow each dimension of an object to be increased/decreased in a given ratio, hence maintaining the relationships between all the lengths of the object.

I saw my maths teacher with a piece of graph paper earlier today.

I think she must be plotting something.

Trigonometry

Trigonometry looks at the relationships between sides of triangles and their angles.

Three main functions are used in trigonometry: sine, cosine and tangent.

Zero

The term sifr (empty in Arabic) was translated into the Latin as zephyrum, which ended up in Italian as zephyr. Zephyr later contracted into the Venetian zero with which Fibonacci decided to name the 0.

Cartesian Geometry

We owe our coordinate system to French mathematician René Descartes (1596-1650). He developed this system in which each pair gives us the position of a point with respect to two fixed perpendicular lines, called coordinate axes.

Why was ten afraid of seven?

Because seven eight nine.

Solids

A solid is a 3-dimensional object that can be any shape or size.

Many solids have particular properties (spheres, cones, cylinders, etc...).

Credit Balance

The amount of money you have in your bank account.