Section 1
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circumference
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Date created
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Cards (118)
Section 1
(50 cards)
circumference
The perimeter of a circle.
pi
The exact numberof times the diameter of circle will go around the circle, which is approximately 3.14.
diameter
The radius of a circle times two.
180 degrees
The sum of measures of the three angles in any triangle is 180 degrees.
undeagon
An eleven-sided polygon.
obtuse angle
An angle that is larger than a right angle but less than a straight angle.
real number
All negative or positive numbers and zero.
radius
The distance from the center of a circle to any point on the circle.
right angle
The angle made by perpendicular lines.
heptagon
A seven-sided polygon.
perimeter
The measure (or distance) around a polygon.
nonagon
A nine-sided polygon.
triangle
A three-sided polygon.
hexagon
A six-sided polygon.
pentagon
A five-sided polygon.
decagon
A ten-sided polygon.
negative number
Any number less than zero.
rhombus
An equilateral parallelogram.
equiangular triangle
A triangle in which the measure of all angles are equal.
vertex
The endpoint of each segment in a polygon.
equilateral triangle
A triangle in which the length of all sides are equal.
irrational number
A number with an infinite number of digits after the decimal point.
octagon
An eight-sided polygon
dodecagon
A twelve-sided polygon.
regular polygon
A polygon in which all segments have the same length and all angles have the same measure.
perpendicular
Two lines that make a square corner at the point of intersection.
equilateral polygon
A polygon in which all segments (or sides) are the same length.
right triangle
A triangle that has a right angle.
equiangular polygon
A polygon in which all angles have the same measure.
trapezoid
A quadrilateral that has exactly two parallel sides.
quadrilateral
A four-sided polygon.
mixed number
The sum of a whole number and a fraction.
obtuse triangle
A triangle in which one the angles measures more than 90 degrees.
isosceles triangle
A triangle that has at least two sides of equal length.
concave polygon
A polygon with an indentation (or cave).
rectangle
A parallelogram with four right angles.
acute angle
An angle that is smaller than a right angle.
square
A rhombus with four right angles.
parallelogram
A quadrilateral that has two pairs of parallel sides.
zero
Used to describe a physical distance of no magnitude or an empty set.
acute triangle
A triangle in which all angles measure less than 90 degrees.
convex polygon
Any polygon that does not have an indentation.
natural (or counting) numbers
Numbers that are used to count objects or things.
positive number
Any number greater than zero.
scalene triangle
A triangle in which none of the sides are equal in length.
side
Each segment of a polygon.
straight angle
Two right angles form a straight angle.
decimal system
The system of numeration that is used to designate numbers.
positive real number
Any number that can be used to describe a physical distance greater than zero.
point of intersection
The point where two lines cross.
Section 2
(50 cards)
difference
The result of subtraction problem.
quotient
The result of a division problem.
inverse operations
opposite operations: addition/subtraction multiplication/division
opposite of a number
on a number line, a number that is the same distance away from zero in the other direction
denominator
The number that is on the bottom in a fraction.
equation
an algebraic statement consisting of two expressions connected with an = sign
fraction
A division problem represent as such: 3/4.
unit multipliers
Fractions used to change the units of a measurement.
undefined
any expression ÷ 0 (5/0)
absolute value of zero
zero
addend
Each number in an addition problem.
area of a triangle
A= 1/2bh
product
The result of a multiplication problem.
multiplicative inverse
every real number has a reciprocal that when combined makes it equal to 1 (3 . . . 1/3)
constant
a quantity whose value does not change
integers
Positive and negative whole numbers {..., -2, -1, 0, 1, 2, 3, ....}
term
a single entity that represents or has the value of a number {4 x xy xy/p}
inequality
Two or more expressions connected by ≠ < or >
dividend
The first number in a division problem.
variable
a letter used to represent a number
area of a circle
A = πr²
{ }
braces
divisor
The second number in a division problem.
square unit
a square with sides one unit long.
equality
two expressions that are equal connected by an = sign
area of a rectangle
A= length x width
factor
The numbers in a multiplication problem.
set
Designates a well-defined collection of numbers.
four basic math operations
Addition, subtraction, multiplication, and division
irrational numbers
number not expressible as a ration of whole numbers(includes: π, square root of 2, etc...)
additive inverse
every real number has an opposite that when combines makes it equal to 0 (2.56 . . . . -2.56)
minuend
The first number in a subtraction problem.
signed numbers
Numbers designated as either negative or positive by prefixing the number with either a (-) or a (+).
whole numbers
Includes the number zero with a set of natural numbers.
expression
one or more symbols that represents a single numerical value (algebraic/numerical)
algebraic addition
If a and b are real numbers, then a - b = a +(-b)
Commutative Property
addition: a + b = b + a multiplication: a x b = b x a
sum
The result of an addition problem.
whole numbers
{ 0, 1, 2, 3, 4....}
rational numbers
number expressible as a ratio of whole numbers(can include fractions, decimals and square roots with finite results)
real numbers
inclusive set of all numbers (counting, whole, rational & irrational)
integers
Includes negative numbers with a set of natural numbers.
[ ]
brackets
numerator
The number that is on top in a fraction.
subtrahend
The second number in a subtraction problem.
area of a square
A= side²
negative real number
Any number that can be used to describe the negative counterpart of a positive real number.
absolute value
In reference to a number, the positive number that describes the distance on a number line of the graph of the number from the origin.
( )
parenthesis
counting numbers
{ 1, 2, 3, 4, ....} also called natural numbers
Section 3
(18 cards)