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Scale Copy

7th Grade Scale Copy

Scale Copy "Same shape different size" A figure where all lengths have been adjusted using the same scale factor, and angles DO NOT change.
Scale Factor The number used to MULTIPLY the lengths of a figure to make a scale copy. A fancy ratio of copy:original
Scale Copy Equation scale copy = original * scale factor (multiplied)
Scale Factor Equation scale factor = scale copy/original (divided)
Corresponding Parts Parts that are in the same position in relation to the rest of the figure. They can be points, segments, or angles.
Scale factor is greater than 1 The copy will be larger
Scale factor equal to 1 The copy will be the same size
Scale factor less than 1 The copy will be smaller
Going backwards from copy to original, what do I do with the scale factor? You use the recipricol aka you FLIP the fraction.
Created by: jgibler
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