How can we help?

You can also find more resources in our Help Center.

22 terms

perimeter

The distance around a figure

improper fraction

a fraction whose numerator is larger than the denominator

denominator

the part of a fraction below the line, which tells how many equal parts there are in the whole or in the group

line

a straight path that extends without end in opposite directions; a series of points that extends in two opposite directions without end

plane

an unbounded two-dimensional shape; a flat surface that extends without end in all directions

vertex

the point of intersection of lines or the point opposite the base of a figure

acute angle

an angle less than 90 degrees but more than 0 degrees

right angle

the 90 degree angle between two perpendicular lines

polygon

a closed plane figure bounded by straight sides

pentagon

a five-sided polygon

triangle

a three-sided polygon

least common multiple

the smallest multiple (other than zero) that two or more numbers have in common

mixed number

a number made up of a whole number and a fraction

parallel lines

lines in the same plane that never intersect

variable

a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity

common factor

an integer that divides two (or more) other integers evenly; a number that is a factor of two or more numbers

horizontal axis

the x axis in a coodinate system; it is a number line that locates points to the left or to the right of the origin

origin

the point of intersection of coordinate axes (0, 0)

reflection

A transformation that "flips" a figure over a reflection line.

translation

A transformation that "slides" each point of a figure the same distance in the same direction on a coordinate plane

probability

a measure of how likely it is that some event will occur; the likelihood that a particular event will occur

coordinate grid

a grid formed by a horizontal line called the x-axis and the vertical line called y-axis