| A | B |
|---|
| prime factorization | Breaking down a composite number until all of the factors are prime |
| probability | The likelihood that an event will occur. The probability that an event will occur is 0, 1, or somewhere between 0 and 1. |
| radius | A length that is half the diameter of a circle; the distance from the center of the circle to the circle itself. |
| right angle | An angle that measures 90 degrees |
| right triangle | A triangle with one right angle |
| supplementary angles | Two angles whose sum is 180 degrees |
| order of operations | Rules that tell which steps to follow when solving an expression. |
| inverse operations | Operations that do the exact opposite of each other; they undo each other (addition and subtraction, for example) |
| lowest terms | A fraction with all common factors (other than 1) factored out of the numerator and denominator |
| pi | The value that shows the relationship of a circle's circumference to its diameter; it has an approximate value of 3.14 |
| prism | A solid figure that has two congruent, parallel polygons as its bases. Its sides are parallelograms |
| ratio | A comparison of the two values of two numbers |
| proportion | An equation stating that two ratios are equal |
| simplify | To make a fraction easier to work with by taking out common factors. In an expression, combining variables that have like unknowns. |
| square unit | A unit for measuring area |
| unit ratio | A ratio that shows the cost per unit of measure |
| x-axis | The horizontal number line of a coordinate graph |
| y-axis | The vertical number line of a coordinate graph |
| x-coordinate | The value on the x-axis used to locate a point on the coordinate graph. It is the first value in an ordered pair. |
| y-coordinate | The value on the y-axis used to locate a point on the coordinate graph. It is the second value in an ordered pair. |
