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Unformatted text preview: __ __ __ 12in 36in 126in 42in The 2 pics are ~, what is the scale factor b/t the 2? 7 2 enlargement painting Example cont. What would the ratios of the perimeters be? 2(12)+2(36)=96 2(42)+2(126)=336 7 2 336 96 = in in Thm 8.1 If 2 polygons are ~ then the ratio of their perimeters is = to the ratio of their corresponding lengths Ratio of perimeters = scale factor Example: parallelogram ABCD ~ parallelogram GBEF. Find the value of y and the ratio of the perimeters. B G E F C Y 12 15 y 12 24 15 = 15y=288 y=19.2 Ratio of Perimeters = 5/8 Assignment Assignment...
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 Spring '11
 Jackson

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