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Math Vocabulary RCEM
| Question | Answer |
|---|---|
| an angle that is less than 90 degrees | acute angle |
| an angle that is more than 90 degrees and less than 180 degrees | obtuse angle |
| what we measure angles in | degrees |
| a number that has more than two factors | composite |
| a number found by dividing the sum of two or more addends by the number of addends, often referred to as the average | mean |
| the value of a digit three places to the right of the decimal | thousandths |
| a triangle with all sides the same length | equilateral triangle |
| a triangle that has at least 2 congruent sides | isosceles triangle |
| a triangle whose largest angle measures greater than 90 degrees | obtuse triangle |
| a triangle that has one 90 degree angle | right triangle |
| a triangle that has no congruent sides | scalene triangle |
| the number of cubic units it takes to fill a solid | volume |
| a whole number greater than 1 that has exactly 2 factors, 1 and itself. | prime number |
| Number that cannot be divided by 2. | odd Number |
| Number that is divisable by 2. | even Number |
| The chance that a particular outcome will occur. | probability |
| has four sides and four angles | quadrilateral |
| value of a digit one place to the right of the decimal | tenths |
| having a probability less than one half | unlikely |
| To reduce a fraction is to put it in ________ form | simplest |
| Two fractions that are equal in value are: | equivalent |
| To find the average is to also find the what? | mean |
| The number that occurs most often in a set of numbers is the what? | mode |
| A fraction that has a larger number on top (numerator) is called an ________ fraction | improper |
| What is the name of the number above the fraction bar? | numerator |
| What is the name of the number below the fraction bar? | denominator |
| What math tool do you use to measure the degrees in an angle? | protractor |
| On a stem and leaf plot digits in the ones place are known as the what? | leaves |
| What do you call a rectangle with all sides the same length? | square |
| A what moves a figure up, down, or over? ** slide ** | translation |
| A what produces a mirror image of figure? ** flip ** | reflection |
| A what rotates a figure around a point? ** turn ** | rotation |
| What is another term for average or mean? | fair share |
| The MODE is the number that occurs __________ ________. | most often |
| An event with a no chance of occurring has a probability of | zero |
| The answer to a division problem | quotient |
| Mean, median, and mode are all measures of: | center |
| Range is a measure of ___________ (or spread) | variation |
| The distance all the way around a circle is called the: | circumference |
| A line that goes all the way through a circle, through the center, is called the: | diameter |
| For a circle, the line from the center to the outside edge is called the: | radius |
| Any line that has both of it's endpoints on the circle is called a: | chord |
| The distance around a polygon is called the: | perimeter |
| The amount of flat surface inside a polygon (measured in square units) is called the: | area |
| The amount of space a 3-dimentional shape takes up is called the: | volume |
| If an event has a probability between 1/2 and 1, then it is: | likely |
| If an event has a probability of 1, it is: | certain |
| If an event has a probability of 0, it is: | impossible |
| Another word for mean or average: | fair share |
Created by:
MrLittle5
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