4-2 Proportions And Similar Figures
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Solve each proportion. a) b)
x 7 = 12 30 y 8 = 12 45
c) d)
25 z = 75 30 n n +1 = 9 24
• To find missing measures of similar figures • To use similar figures when measuring
indirectly • To apply proportions when finding distances represented on maps.
congruent and corresponding sides are proportional scale drawing The ratio of a distance in the drawing to the corresponding actual distance. scale factor A transformation in which a figure and its image are similar.
Last Problem
Finish Quick Check 2 & 3 on Worksheet
Page 192-193: 1 – 20 all
x 7 = 12 30 y 8 = 12 45
c) d)
25 z = 75 30 n n +1 = 9 24
• To find missing measures of similar figures • To use similar figures when measuring
indirectly • To apply proportions when finding distances represented on maps.
congruent and corresponding sides are proportional scale drawing The ratio of a distance in the drawing to the corresponding actual distance. scale factor A transformation in which a figure and its image are similar.
Last Problem
Finish Quick Check 2 & 3 on Worksheet
Page 192-193: 1 – 20 all
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