44 terms

# 6th grade math exam review

#### Terms in this set (...)

absolute value
distance from the origin
mean
average; add up all data and divide by the number of data
median
the MIDDLE number when data is ordered from least to greatest
mode
data that occurs MOST often
range
the difference between the highest and lowest scores of the data
frequency table
a way to present data with tally marks
stem and leaf plot
a way to present data with stem as higher digit place value and leaves as lower digit place value
circle graph
a way to present data using percentages
perimeter
the distance around any closed figure
area
The number of square units required to cover a surface; measurement of space inside a closed figure
circumference
distance around a circle
composite figure
figure composed of two or more shapes combined
center of circle
point in the center of circle
diameter
A straight line passing from side to side through the center of a circle.
A straight line from the center to the circumference of a circle or sphere.
semicircle
half of a circle
acute triangle
A triangle with three acute angles.
angle
A figure formed by two rays with a common endpoint
complementary angles
two angles whose sum is 90 degrees
congruent
Having the same measure
equilateral
all sides the same measure
equiangular
all angles have the same measure
parallel lines
lines that never intersect
parallelogram
A quadrilateral with opposite sides parallel and congruent and opposite angles are congruent
perpendicular lines
lines that intersect at 90 degree angle
polygon
A closed plane figure made up of line segments
A four-sided polygon.
reflection
A transformation that "flips" a figure over a mirror or reflection line.
regular polygon
a polygon that is both equilateral and equiangular; all sides and angles congruent
right triangle
a triangle with one right angle
rotation
rotate figure around a point
similar figures
figures that are proportional, but not necessarily the same size
supplementary angles
Two angles whose sum is 180 degrees
translation
slide a figure to a new place
vertex
the common endpoint of an angle
coefficient
A number multiplied by a variable.
equals sign
symbol that shows two expression equal each other
equation
a math problem with an equal sign
inverse operation
operations that undo each other
solution
value of the variable that makes an equation true; the answer
solve
to replace a variable with a value that results in a true sentence; process to find the solution
coordinate plane
formed by two lines that intersect at a 90 degree angle forming 4 quadrants
ordered pair
A pair of numbers that can be used to locate a point on a coordinate plane
right angle
an angle that measures 90 degrees