General
A letter used to represent a number.
variable
The horizontal number line in a coordinate plane.
x-axis
An angle that measure 90 degrees.
right angle
The distance around the outside of a 2-dimensional figure.
perimeter
A set of rules for evaluating an expression involving more than one operation.
order of operations
An average of a data set found by finding the number that occurs most often in a data set.
mode
The vertical number line in a coordinate plane.
y-axis
An angle that measure less than 90 degrees.
acute angle
The space inside a 2-dimensional figure.
area
The likelihood an event will occur.
probability
An average of a data set found by listing the numbers in numerical order and finding the number located in the middle.
median
One of the four regions of a coordinate plane.
quadrant
An angle that measures more than 90 degrees and less than 180 degrees.
Obtuse angle
The space inside a 3-dimensional figure.
volume
Formed by the intersection of a vertical number line called the y-axis and a horizontal number line called the x-axis.
coordinate plane
An average of a data set found by finding the sum of the numbers and dividing by the total number of numbers.
mean
The point (0,0) where the x-axis and the y-axis intersect.
origin
An angle that measure exactly 180 degrees.
straight angle
The sum of the areas of the faces of a 3-dimensional figure.
surface area
A method for solving proportions.
cross product
The difference between the greatest and least value in a data set.
range
Gives the location of a point in a coordinate plane.
ordered pair
An angle that measure greater than 180 degrees but less than 360 degrees.
reflex angle
A simple, closed, 2-dimensional figure containing 3 or more closed line segments.
polygon
A comparison of two quantities.
ratio