 Determine whether the non rigid transformations below are a dilation or distortion. Which one will result in two similar figures?  a. (x,y) → (2x,2y)

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Presentation transcript:

 Determine whether the non rigid transformations below are a dilation or distortion. Which one will result in two similar figures?  a. (x,y) → (2x,2y)  b. (x,y) → (2x, 3y)

 Homework 9-1 Due Tuesday Night!  Quiz Thursday!  Test re-takes due by Friday!  Must attend 30 minute tutorial FIRST!

 1. Proportion  2. Scale Factor  3. Similar Figures  4. Similar Polygons  write down your assigned definition – 2 minutes  When instructed return to your group and share definitions in numerical order – 6 minutes

 Log on to the online textbook and open up interactive learning assignment  Answer questions in spiral notebook

 Two figures that share:  Congruent corresponding angles  Proportional corresponding sides

NO!YES!

Corresponding Angles must be put in the same order! ∆ABC~∆DEF ∆ABC~∆FDE - WRONG

 9-1

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