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24 Cards in this Set
- Front
- Back
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image
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the shape made with a two-band stretcher
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parallel
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two lines that are in the same plane that will never meet or intersect
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parallelogram
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a closed, four-sided figure with opposite sides parallel
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square root
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3 is an example of this when comparing it to 9
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ratio
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comparison of two similar things (quantities) that tells the scale between them-- usually written as a fraction (one number divided by another number)
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complementary angles
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pairs of angles whose measures add up to 90 degrees
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corresponding angles
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angles of two different figures that are in the same, relative position
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scale factor
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a number used to multiply the sides of a figure to stretch or shrink it
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corresponding sides
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sides of two different figures that are in the same, relative position
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angle measure or the unit of measure for an angle
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An angle is measured with the unit called a degree. A 'right angle' is a total of 90 degrees.
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equivalent ratios
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ratios written as fractions that have the same value; e.g. 1/2 is a ratio and 2/4 is a ratio; and these two ratios are equal or 'equivalent'.
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congruent
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When shapes are identical, we call these shapes 'congruent'
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coordinate
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a pair of numbers that work together to form a point. e.g., (2,4) is a point on a coordinate graph
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midpoint
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a center point on a line
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a rep-tile
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tiles put together to form a larger, SIMILAR figure
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probability
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PROBABILITY is the chance that something will occur. QUESTION: What is the chance that a coin will fall on the 'heads' side: ANSWER: 1 chance out of two or 50%
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perimeter
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the distance around a polygon
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quadrilateral
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a closed four-sided figure
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supplementary angles
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two angles whose measures add up to 180 degrees
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a dimension
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the length and width of a polygon is called DIMENSION
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to square a number
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multiplying a number times itself gives you that number's SQUARE
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similar shapes
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shapes that have a scale factor, and the same angles and the same shape
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a tessellation
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a pattern that is repeated to completely cove all spaces in a flat surface
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a transformation
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something that has been changed
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