key terms math
a set of rules for solving a math problem with a given number of steps.
a number's distance from zeo on the number line.
An angle less than 90 degrees.
the figure formed by two rays or line segments that have a common vertex. Angles are measured in degrees.
the sum of all the measurements of all the interor angles of a polygon
to become different.
a graphical representation of pairs of related numerical values that show the relationship between the independant variable (X-AXIS) and the dependant variable.(Y-AXIS)
an ordered pair of numbers used to locate a point on a coordinate grid.
an angle with its vertex at the center of a circle
to find the discount, you must find 20% OF 25%.
the variable that relies on the independant variable.
a unit of measure of angles is also equal to 1/360 of a complete circle.
a straight line connecting any two vertices of a polygon that are not adjacent.
writing an expression as long as the (long way) sum of multiple terms.
a mathematic statement that two expressions are equal.
are rules containing variables that represent a mathematical relationship
a triangle with three equal sides
an angle at a vertex of a polygon where the sides of the angle are on one side of the polygon and the extension on the other side.
writing an expression as (short way) the product of factors.
Whole numbers and their opposites
one of the two varables in a relationship. its value determines the value of the other variable called the dependant vaiable.
the angle inside two adjacent sides of a polygon
A polygon with sides that are not all congruent or angles that are not all congruent
a triangle with two equal sides
line of symmetry
A line such that if a shape is folded over this line the two halves of the shape match exactly.
part of a line with two endpoints
a point that divides a segment into two congruent segments
Numbers less than zero on the number line
Numbers that are the same distance from zero in the opposite direction (-3 and 3)
an angle that measures more than 90 degrees but less than 180 degrees
numbers greater than zero on the number line
a change that occurs a predictable way.
lines that never touch
a quadrilateral with two pairs of parallel sides
intersecting at or forming right angles
a shape formed by line segments, called sides, so that each of the segments meet exactly two other segments.
a four-sided polygon
the inverse of a number or fraction.
All positive and negative integers, fractions and decimal numbers.
an association between two or more variables.
a straight line extending from a point
a parallelogram with four right angles
a figure has reflection symmetry if it coincides exactly with its reflection image across the axis of symmetry.
a polygon with all sides and all angles equal
a quadrilateral with four congruent sides
an angle that measures 90 degrees
Has one right angle and two acute ones.
A shape has rotation symmetry if it can be rotated less than a full turn about its center point to a position where it looks exactly as it did before it was rotated.
a summary of a predictable relationship that tells how to find a value of a variable.
the regular price of an item minus the discount
a labeling scheme used on each of the axis's on a coordinate grid.
a triangle with no equal sides
having four equal sides and four right angles or forming a right angle
an angle with a measure equal to 180 degrees
a list of values for two or more variables that shows the relationship between them.
(also called tessellation) a repeating pattern of plane figures that completely cover a plane with no gaps or overlaps
a line that intersects two or more lines at different points
A quadrilateral with one pair of parallel sides
a quantity that can change
point of a polygon
the number line that is horizontal on a grid
the number line that is vertical on a grid
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