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Geometry Warm up: pg. 570 # 18-21
11.1 Similar Polygons pg. 563 -570 RECALL from chapter 4 -- Congruency.. You learned specifically that TRIANGLES are ≅ if they meet certain criteria: SAS SSS ASA AAS (AAA and ASS or ASS backwards did NOT work) What did you have to do? -Compare 2 triangles -See if pieces matched in a specific order -Declare them ≅ -Then the remainign pieces were CPCTC
This time we are not concerned about ≅ but we are concerned about similarity! 2 figures are congruent if they are the same exact size and shape 2 figures are similar they are the same shape but their sides are proportional (think Xerox machine)
Polygons are similiar IF and ONLY IF their corresponding angles are ≅ AND their sides are proportional!
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes
11.1 And 11.2 Notes

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11.1 And 11.2 Notes

  • 1. Geometry Warm up: pg. 570 # 18-21
  • 2. 11.1 Similar Polygons pg. 563 -570 RECALL from chapter 4 -- Congruency.. You learned specifically that TRIANGLES are ≅ if they meet certain criteria: SAS SSS ASA AAS (AAA and ASS or ASS backwards did NOT work) What did you have to do? -Compare 2 triangles -See if pieces matched in a specific order -Declare them ≅ -Then the remainign pieces were CPCTC
  • 3. This time we are not concerned about ≅ but we are concerned about similarity! 2 figures are congruent if they are the same exact size and shape 2 figures are similar they are the same shape but their sides are proportional (think Xerox machine)
  • 4. Polygons are similiar IF and ONLY IF their corresponding angles are ≅ AND their sides are proportional!