| A | B |
|---|
| Numerator | Top part of a fraction |
| Denominator | Bottom part of a fraction |
| Straight path of two points that continues forever in 2 directions | Line |
| Line segment | Part of a line made up of two endpoints |
| Ray | Formed by an endpoint and continues in one direction forever |
| Angle | Two rays with the same endpoint |
| Intersecting lines | Two lines that cross once |
| Parallel lines | Two lines in the same plane that never intersect |
| Instrument to measure angles | Protractor |
| Scalene triangle | All 3 sides are different |
| Isosceles triangle | Two sides are equal |
| Equilateral triangle | All three sides are equal |
| 180 degrees | Sum of the 3 angles of a triangle |
| Polygon | Closed figure whose line segments do not cross each other |
| Trapezoid | One pair of parallel lines |
| Diameter | The chord that passes through the center of a circle |
| lenght * width | area of a rectangle |
| 1/2 * base * height | Area of a triangle |
| base * height | area of a parellelogram |
| lenght * width * height | Volume of a rectangular prism |
| (pi) * d | Circumference of a circle |
| Statistics | Collect, organize and interpret data |
| Range | Difference between greatest number and least number in a data set |
| Frequency | Number of times a number occurs in a data set |
| Frequency table | Table of tally marks and frequency of a data set |
| Median | Middle number of a data set that is in order |
| Mode | Most frequent number in a data set |
| Mean | Average in a data set; add all the numbers and divide by the number of numbers |
