MATH 7 Vocabulary
Word
adjacent (angles)
associative property
base
Angles in the same place that are side by side and have a common vertex and a common side
The property that says that the sum or product of three or more numbers is always the same, no matter how your group them
A side of a polygon, or the length of a side.
coefficient
The number that is multiplied by a variable in an algebraic expression.
commission
commutative property
Complementary (angles)
congruent
correlation
constant
cubed
data
diameter
The property that says that two or more numbers can be added or multiplied in any order without changing the result.
Two angles whose angles measures add to 90 degrees.
Having the same size and shape.
The description of the relationship between two sets of data.
A value that does not change.
A base raised to the 3rd power. [comes from finding the volume of a cube]
Facts and statistics collected together for reference or analysis.
A line segment that passes through the center of a circle and has endpoints on the circle, or the length of that center.
distributive property
Multiplication over addition and Multiplication over subtraction. A property that allows you to eliminate parentheses
when using Order of Operations. The property says that multiplying a sum or difference by a number is the same as
multiplying each number in the sum or difference by that number and then adding or subtracting the products.
edge
equation
expression
The line segment formed by the intersection of two faces of a solid figure.
A mathematical sentence that shows that two expressions are equivalent.
A mathematical phrase that contains operations, numbers, and/or variables.
face
interest
Inequality
A flat surface of a polyhedron.
The cost of borrowing money and/or a percentage earned for saving money.
A mathematical statement that compares two expressions by using one of the following symbols:>, <, ≥, ≤, 𝑜𝑟 ≠.
Inverse operation
The opposite or reverse operation.
multiplicative inverse
One of two numbers whose product is 1. Also called reciprocal.
outcome
A possible result of a probability experiment.
Parallel
Lines/planes that do not intersect.
perpendicular
Lines/planes that intersect to form a right angle.
probability
A number from 0 to 1 (or 0% to 100%) that describes how likely an event is to occur.
proportion
An equation that states that two ratios are equivalent.
radius
A line segments with one endpoint at the center of the circle and the other endpoint on the circle, or the length of that
segment.
rational numbers
A number that can be written as a ratio [in the form a/b with b not equal to zero].
reciprocals
One of two numbers whose product is 1. Also called multiplicative inverse.
simplify
To write a fraction or expression in simplest form.
Solution set
A group containing the value or values that make a statement true.
solve
To find an answer or solution. To find the value of a variable in a math problem.
Squared
Supplementary (angles)
A base raised to the 2nd power. [comes from finding the area of a square].
Two angles whose measures have the sum of 180°.
transversal
A line that intersects two or more lines.
trial
variable
In probability, a single repetition or observation of an experiment.
A symbol used to represent a quantity that can change.
Vertical (angles)
A pair of opposite congruent angles formed by intersecting lines.