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34 Cards in this Set

  • Front
  • Back
chord
a line segment whose endpoints are on a circle
circumference
the distance around a circle
composite number
a whole number having more than two factors
diameter
a line segment that has endpoints on a circle and passes through the center of the circle
PSSA Math Glossary 5-6
PSSA Math vocabulary for 5th and 6th
expanded notation
a way to write numbers that shows the value of each digit
greatest common factor (GCF)
the largest factor that two numbers have in common
heptagon
a polygon with 7 sides
histogram
a bar graph in which the labels for the bars are numerical intervals
hypotenuse
the longest side of a right triangle (which is also opposite the right angle)
least common denominator (LCD)
the least common multiple of the denominators in two or more fractions
least common multiple (LCM)
the smallest number, other than zero, that is a common multiple of two or more numbers
leg (of a right triangle)
either of the two sides that form the right angle in a right triangle
line plot
a graph showing the frequency of data on a number line
nonagon
a polygon with 9 sides
plane
a flat surface that extends infinitely in all directions
prime number
a whole number that has exactly two factors, 1 and itself
quadrants
the four regions of a coordinate plane that are separated by the axes
radius
a line segment that has one endpoint on a circle and the other endpoint at the center of the circle
range
the difference between the greatest and least numbers in a set of data
rate
a ratio that compares two quantities having different units (example: 95 miles in 2 hours)
ratio
a comparison of two numbers using division
regular polygon
a polygon that has all sides congruent and all angles congruent
repeating decimal
a decimal that has a repeating sequence of numbers after the decimal point
similar polygons
polygons that have the same shape, but not necessarily the same size. Corresponding sides of these polygons are proportional.
straight angle
an angle with a measure of 180 degrees
terminating decimal
a decimal that contains a finite number of digits
transformation
the moving of a figure by a translation (slide), rotation (turn), or reflection (flip)
unit price
the price of a single item or amount
unit rate
a rate with the second term being one unit (example: 50 miles/gallon)
Venn diagram
a diagram that shows relationships among sets of objects
whole number
any of the numbers 0, 1, 2, 3, 4, 5, ... (and so on)
X-axis
the horizontal number line on a coordinate plane
Y-axis
the vertical line on a coordinate plane