## Area

The amount of surface or the size of a surface. Area is measured in square units. Units of area are:

The amount of surface or the size of a surface. Area is measured in square units. Units of area are:

Unit of area in the metric system. It is the area of a square with sides measuring 10 metres. Example

Height. How high something is above the surface of the Earth, sea level or horizon. Altitude is the length of perpendicular height from base to… Read More »Altitude

A rule for solving a problem in a certain number of steps. Every step is clearly described. Examples

In algebra we use numerals, symbols and letters called variables or pronumerals, and combinations of both. They stand for the unknown values. Examples