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vocabulary math word
terms to know for 7th grade math
| Question | Answer |
|---|---|
| numbers distance from zero on a number line | absolute value |
| any angle whose measure is less than 90 degrees | acute angle |
| triangle which all angles measure less than 90 degrees | acute triangle |
| opposite of a number | additive inverse |
| specific set of instructions for solving a problem | algorith |
| when two parrallel lines are cut by a transversal, 2 angles above and below the parallel lines and on opposite sides of the transversal | alternate exterior angles |
| when two parallel lines are cut by a transversal, two angles between the lines and on opposite sides of the transversal | aleternate interior angles |
| to seperate things into parts | analyze |
| two rays that meet at a common endpoint | angle |
| to estimate a a value which is not exact but close enough to use | approximate |
| squence of numbers where a number is added or subtracted each time | arithmetic squence |
| sum or product of a set of numbers is the same, no matter how they are grouped | associative property |
| 1)the side or face a 3-D shape stands2)a quanity which is raised to an exponet | base |
| box indicating the middle 50% of the ranked statistics and the max/min of data | box and whisker plot |
| all points are equistant from a fixed point | circle |
| display of data using a circle divided into slices | circle graph |
| distance around a circle pie distance | circumference |
| rule which states that you may add or multiply in any order | commutative property |
| to give similarities and differences | compare |
| two angles whose sum is 90 degrees | complementry angles |
| number with two or more factors | composite number |
| polygon that has an interior angle greater than 180 degrees | concave polygon |
| solid consisting of circular base and one vertex | cone |
| figures with the same size and shape | congruent |
| to give differences | contrast |
| a polygon that has no interior angle greater than 180 degrees | convex polygon |
| two-dimensional figure consisting horizontal and vertical axes | coordinate plane |
| ordered pair of numbers that describes a point on coordinate graph | coordinates |
| any pair of angles of which is on the same side of one of two lines cut by a transversal on the same side of the transversal | corresponding angles |
| 1)solid with six square faces2)to raise a number to the thrid power | cube |
| units of measurement used in the U.S. (inch, feet, pints, pounds, etc.) | customary system |
| solid shape with circular bases | cylinder |
| line segment connecting two non adjacent verticals in a polygon | diagonal |
| line segment that passes through the center of a circle and divides it in half | diameter |
| anwser to a subtraction problem | difference |
| two quanities in which an increase in one causes an increase in the other | directly proportional |
| length of shortest line segment between 2 points, lines, and planes | distance |
| a(b+c)=ab+ac and vice versa | distributive property |
| set of possible values for the variables | domain |
| line segment where the faces of a polyhedron meet | edge |
| mathmatical sentence that two expressions are equal | equation |
| all sides are of equal length | equilateral triangle |
| represent the same number | equivalent forms |
| an approximation or rough calculation | estimate |
| method of writing a number that highlights the value of each digit 867=800+60+7 | exxpanded form |
| ratio of the number of times an outcome happened to the total number of trials in an experiment | experimental probabilty |
| number written using bases and exponets (32=2 to the fifth power) | exponential form |
| numeral that indicates how many times a number or expression is to be multiplied by itself | exponents |
| combination of numbers, variables and operations | expression |
| flat, polygonal regions of a polyhedron | faces |
| number or expression that is multiplied by another to yield a product | factor |
| n!: product of all the whole numbers from 1 to n [3! = (3)(2)(1)] | factorial |
| 1,1,2,3,5,8,13,21,34,55,etc. (add previous 2 numbers) | fibonnacci |
| assigns exactly 1 out value to each input value | function |
| if there are m ways for one event to occur and n ways for another event to occur, then there are mn ways for moth events to occur | fudemental counting principle |
| to produce or create | generate |
| squence where you multiply or divide to get the next term | geometric sequence |
| flat, level figure moving left to right | horizontal line |
| side in a right triangle, opposite the right angle(longest side) | hypotenuse |
| in probability, one outcome of an event doesnt effect anothers outcome | independent event |
| statement that one quantity is{or} another | inequality |
| whole numbers and opposites | integers |
| to explain the meaning of | interpret |
| in a set of data, the difference between the first and third quartile | interquartile range |
| set of elements that belong to each of two overlapping sets | intersection |
| space of time between events or objects | interval |
| two quantities for which an increase in one causes a decrease in the other | inveresly proportional |
| operations that undo each other | inverse operations |
| to study by close examination | investagate |
| set of numbers that cannot be expressed as finite or repeating decimals | irrational numbers |
| triangal with at least two equal sides of equal length | isosceles triangle |
| to prove to be right | justify |
| sides adjacent to the right angle of a right triangle | legs of triangle |
| on a line, two endpoints and all points between them | line segment |
Created by:
laurengillian
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