central angle

an angle whose vertex is the center of the circle

coordinate plane

A two-dimensional region determined by a pair of axes and that uses numerical values to represent the location of an object.

exterior angle

an angle formed by one side of a triangle and the extension of another side

heptagon

a seven-sided polygon

hexagon

a six-sided polygon

polynomial

a mathematical expression that is the sum of a number of terms

quartile

the lower of this is the value with a quarter of the data below it; the upper of this has a quarter of the data above it

regular hexagon

a hexagon with six sides of equal length

representative sample

sample carefully chosen so that the characteristics of the participants correspond closely to the characteristics of the larger population

right cylinder

A cylinder with the axis perpendicular to both bases.

right pyramid

a pyramid in which the segment from the vertex to the centroid of the base is perpendicular to the base

slant height

The height of a triangular face of a pyramid

slope-intercept form

y=mx+b

supplementary angle

When the sum of the measures of a pair of angles add up to 180°

transversal

A line that intersects two or more lines.

undefined

an expression which does not have a meaning or cannot be assigned a value

x-coordinate

the first number in an ordered pair

y-coordinate

the second number in an ordered pair

y-intercept

where the line crosses the y axis