| Terms | Definition |
| ABSOLUTE VALUE | The absolute value of a number is its distance from 0 on a number line. It can be tought as the value of a number when its sign is ignored. For example, -3 and 3 both have an absolute value of 3 or |3| = 3 and |-3|=3. |
| ACUTE ANGLE | An angle whose degree measure is less tha 90. |
| ALGORITHM | An algorithm is a set of rules for performing a procedure. Some examples of algorithms are the rules for long disision or the rules for adding two fractions. |
| ANGLE | Consists of two rays that meet at a vertex, measured in degrees or radians |
| ARC OF A CIRCLE | A part of a circle. Arcs are classified as minor or major depending on the central angle. |
| ARC LENGTH | The length of the arc of a circle. It is calculated using the formula (a/360) x 2r x NUMBER PI where a is the central angle of the arc. |
| AREA | The measure of the amount of surface enclosed by the sides of a figure. It is measured in square units such as square cm, square inches and square miles. |
| AVERAGE | The sum of all the values in a data set divided by the number of data values. It is the same as MEAN. |
| AXIS, AXES | The number lines that are used to make a graph. There are usually two/threeaxes perpendicular to each other. |
| BASE OF A SOLID | The bottom side or face of a three-dimensional shape. |