| A | B |
|---|
| formula | a recipe or equation used to find specific information |
| plane | a flat surface, with no thickness, that extends forever |
| diameter | a line segment across a circle that goes through the center and divides the circle into two equal halves |
| equation | a mathematical sentence that has two equivalent, or equal, expressions separated by an equal sign (=) |
| circumference | the boundary line of a circle |
| pi | equal to 22/7, or 3.14. It is the ratio of the circumference of any circle to the diameter of the circle |
| radius | a line segment from the center point of a circle to any point on the circle. half the length of the diameter |
| whole numbers | the counting numbers and 0 |
| integers | the set of counting numbers, their opposites and 0 |
| opposites | the positive and negative of the same number |
| number line | a line with equal distances marked off to represent numbers |
| volume | the amount of space inside a three dimensional object |
| base | in terms of geometry, generally refers to the side on which a figure rests |
| centimeter | a small unit of metric length that is 1/100th of a meter |
| area | the space inside a closed, two dimensional figure |
