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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 56

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)


Xaxis

the horizontal number line on a coordinate plane


Yaxis

the vertical line on a coordinate plane
