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31 Cards in this Set
- Front
- Back
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Acute angle
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an angle that measures less than 90° (cute little angle)
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Composite number
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a whole number that has three or more factors
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Vertex (or vertices)
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the point where 2 rays, 2 sides of a polygon or 3 or more edges of a solid figure meet (or the top of a cone)
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Congruent
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figures that have the same size and shape
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Volume
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the area of the base of a prism times the height
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Coordinates
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the numbers in an ordered pair (representing the X and Y axis) (3,7) (5,-4)
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Edge
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the line segment where two faces of a solid figure meet
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Equivalent
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having the same value or naming the same amount "="
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Face
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the flat surface of a solid figure
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Factor
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a number that is multiplied by another number to get a product
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Greatest Common Factor
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the largest factor that two or more numbers have in common
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Least Common Multiple
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the smallest number that is a common multiple of two or more numbers
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Mean
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the “average” of a set of data (1. Total all the numbers, 2. Divide the sum by how many numbers there were)
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Median
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the middle number (or average of the two middle numbers) in an ordered set of data
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Mode
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the number that occurs most often in a set of data
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Multiple
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the product of a given number and another whole number
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Oblique lines
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two lines that intersect but do NOT form four right angles
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Obtuse angle
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an angle that measures more than 90° but less than 180° (O-big)
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Parallel lines
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lines in a plane that never intersect
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Perpendicular lines
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two lines that intersect and form four right angles
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Prime factorization
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a number written as the product of all its prime factors
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Prime number
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a whole number that has exactly two factors
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Probability
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the likelihood that an event will happen (written as the favorable outcome over the possible number of outcomes)
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Right angle
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an angle that measures exactly 90°
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Range
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the difference between the greatest and the least number in a set of data (Largest number minus smallest number)
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Reflection
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(flip) moving a figure to a new position by “flipping” it over a line
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Regular polygon
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a polygon that has all congruent sides and angles
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Rhombus
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a parallelogram with four congruent sides
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Similar
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figures that have the same shape but different sizes
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Rotation
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(turn) moving a figure to a new position by “turning” it around a point
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Translation
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(slide) moving a figure to a new position without flipping or turning
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