65 terms

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acute triangle
triangle with all angles less than 90 degrees
algebraic expression
numbers, symbols, and variables
area
space inside a 2D figure
bar graph
uses bars to compare data
base
the bottom of a figure
circumference
distance around a circle
congruent
same size and shape
cubed
the third power (exponent of 3)
denominator
bottom of fraction
diameter
distance across a circle
dilation
a larger or smaller version of a figure
equation
a math sentence with an = sign
equilateral triangle
triangle where all sides are equal length
equivalent fractions
two equal fractions
experimental probability
chances based on results of experiment
exponent
tells how many times to multiply a number
expression
collection of numbers, symbols, and/or variables
factor
a number that can be multiplied to make another number
frequency table
uses tallys to record how often something occurs
GCF
greatest common factor
histogram
uses bars to compare intervals of numbers
inequality
one expression in greater than or less than another
integers
positive whole numbers and opposites
isosceles triangle
two sides are the same
LCM
least common multiple - least common number that two numbers are factors of
line graph
best type of graph for changes over time
line plot
uses x's to show how often a data item occurs
mean
the average of a group of numbers - add numbers and divide by how many numbers
median
the middle number in a set of numbers
mode
the most common in a set of numbers
numerator
the top of a fraction
obtuse triangle
a triangle with one angle larger than 90 degrees
order of operations
parenthesis, exponents, multiply and divide, add and subtract
outlier
a value that is much greater or much less than the rest of the numbers
parallel
never intersect
perpendicular
intersect and form a right angle
parallelogram
quadrilateral with 2 pairs of parallel sides
percent
a ratio out of 100
perimeter
the distance around a polygon
plane
a flat surface
polygon
closed figure made of at least 3 line segments
prime factorization
writing composite numbers and product of primes
prime number
number that has only 2 factors (1 and itself)
probability
measuring how likely something is to occur
proportion
2 equal ratios
having 4 sides
quotient
the answer to a division problem
halfway across circle; from center to edge of circle
range
highest value minus lowest value
ratio
comparing 2 numbers by division
reflection
a mirror image of a figure
right triangle
triangle with a right angle
rotation
turning a figure around a point
rule
a procedure for creating a pattern in a series of numbers
scalene triangle
all sides different length in a triangle
sector
a part of a circle
similar figures
same shape, but a larger or smaller version; sides form a proportion
squared
number to the second power (times itself)
surface area
area of the outside of a 3D figure
theoretical probability
what should happen based on possible outcomes
translation
moving (or sliding) a figure along a straight path
trial
performing an experiment
variable
letter used to represent an unknown quantity
volume
space inside a 3D figure
vertex
corner of a 2D or 3D figure where 2 lines meet