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### 11 Cards in this Set

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 cross products in the proportion a/b = c/d, where b does not equal 0 and d does not equal 0, the cross products are ad and bc. The proportion is true if and only if the cross products are equal. extremes In a/b = c/d, the numbers a and d. fractal a figure generated by iteration iteration a process of repeating the same procedure over and over again means In a/b = c/d, the numbers b and c. midsegment a segment with endpoints that are the midpoints of two sides of a triangle proportion An equation that states two ratios equal ratio a comparison of two quantities scale factor the ratio of the lengths of two corresponding sides of two similar polygons or two similar solids self-similar If any parts of a fractal image are replicas of the entire image, the image is self-similar. similar polygons Two polygons are similar if and only if their corresponding angles are congruent and the measures of their corresponding sides are proportional.