Chapter 1
A decimal that ends
terminating decimal
Contains numbers, variables and operation symbols
Expression
A comparison of two things
Ratio
The opposite angles that are formed when two lines intersect
Vertical angles
A 3-D shape with two circular bases
Cylinder
A decimal that keeps repeating
repeating decimal
Contains numbers, variables, operation symbols, and an equals sign
Equation
An equation that says two ratios are equivalent.
Proportion
Two or more angles with the same measure
Congruent angles
The 3-D shape of a baseball or the Earth
Sphere
The distance from zero on a number line
absolute value
Contains numbers, variables, operation symbols and an inequality symbol
Inequality
k in a direct proportion equation - it doesn't change
Constant of proportionality
Two or more angles with a sum of 90 degrees
Complementary angles
What shape has a square bottom and four sides that come to a point.
Square Pyramid
Numbers with different signs, such as 12 and -12
Opposited
The inequality symbol that shows "No more than"
Less than or equal to (≤)
y = kx or y/x = k
Direct proportion equation
Two or more angles with a sum of 180 degrees
Supplementary angles
A tissue box is an example of what 3-D shape?
Rectangular Prism
Two integers that have sum of zero, such as -9 and 9.
Zero pair
The symbol that shows that two or more things have the same value
Equal sign (=)
They way you solve a proportion by multiplying one numerator with the opposite denominator.
Cross products
Two angles that share a vertex and one ray
Adjacent angles
What do we call the sum of the areas of all the faces of a 3-D shape?
Surface area