8th grade math vocabulary
About this set
Created by:
yraj20 on March 9, 2009
Subjects:
8th grade math vocabulary, 8th grade math test, 2009
Classes:
7th/8th grade Math, 8th grade math
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30 terms
Terms | Definitions |
|---|---|
 percent | a ratio that compares a number to 100 |
| gratuity | a tip due to how good a waiter was |
| commission | earning based on the amount of total sales |
| sales tax | an additional percent on the total price |
| unit rate | how much for one unit |
| dilation | a transformation which reduces or increases the size of the original |
| scale factor | The number of times larger or smaller the image is from the original. 1) If a scale is greater than one the image will be larger. 2) If the scale factor is between 0 and 1 the image will get smaller. |
| right triangle | 90 degree angle |
| acute angle | an angle less than 90 degrees but more than 0 degrees |
| obtuse angle | an angle greater than 90 degrees but less than 180 degrees |
| straight angle | an angle that is 180 degrees |
| linear pair | two angles that for a straight angle are called a linear pair |
| supplementary angles | two angles that add up to 180 degrees |
| complementary angles | two angles that add up to 90 degrees |
| vertical angles | opposite angles that are always congruent |
| congruent | equivalent |
| parallel lines | lines that go on forever and that will never intersect |
| transversal | a line that intersects two or more lines |
| corresponding angles | two angles that are in the same place or location on parallel lines cut by a transversal. They are congruent. |
| ~= | sign for congruent |
| alternate | on the opposite sides of a transversal |
| interior | in between to two parallel lines |
| exterior | outside the parallel lines |
| alternate exterior angles | are congruent |
| alternate interior angles | are congruent |
| term | A number or variable or a number with a variable or variables attached by multiplication. For example 3xyz or 5 or n. |
| monomial | an expression with exactly one term For example 3x or a or b or xy or 7x^3y^7d^3 |
| binomial | an expression with exactly two terms For example 6j^2 +2j^3. |
| trinomial | an expression with three terms. For example 3x+ 3y+3z. |
| distributive property | multiply the term in the front of the parenthesis by each term inside the parenthesis |
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