| A | B |
|---|
| base | A side of a polygon or a face of a solid figure by which the figure is measured or named. |
| denominator | The number or term below a fraction bar. In 3/4, 4 is the denominator. |
| equivalent fractions | Fractions that name the same number. 3/4=6/8. |
| exponent | The number that indicates how many times the base is used as a factor, 4x4x4, 4 is the base, 3 is the exponent. |
| fraction/division bar | The line symbol between the numerator (top) and denominator (bottom). |
| hypotenuse | In a right triangle, the side opposite the right angle (90 degrees). |
| irrational number | A number that cannot be expressed as a repeating or terminating decimal, p/q. |
| leg | In a right triangle, either of the two sides that intersect to form the right angle; in an isosceles triangle, one of the two congruent sides. |
| perfect square | A number that has an integer as its square root: 9, 16, 25. |
| Pythagorean Theorem | In any right triangle, if a and b are the lengths of the legs and c is the length of the hypotenuse, then a-squared + b-squared = c-squared: 9+16=25. |
| rational number | Any number that can be expressed as a ratio a/b where a and b are integers and b is not equal to 0. |
| real number | A rational or irrational number. |
| repeating decimal | A decimal in which one or more digits repeat endlessly: 5.272727 or 5.27 bar. |
| scientific notation | A method of writing very large or very small numbers by using powers of 10: 120=1.2x10-squared. |
| simplest form | The result of combining like terms in an expression or removing identical terms from a numerator and denominator: 2y+5y=7y, 12/15=4/5. |
| standard notation | A number written without exponents: an integer or a decimal fraction. |
| terminating decimal | A decimal that ends; a decimal for which the division operation results in a remainder of zero: 0.625 |
