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