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Similar Triangles

Similar Triangles. 9/22/13. Definition and Symbol. Similar triangles – Triangles that have the same shape Symbol for similarity ~ Example : . Proportionality. Proportional – Related by a constant ratio Similar triangles have proportional corresponding sides. B’. B. 10cm. 16cm. 5cm.

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Similar Triangles

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  1. Similar Triangles 9/22/13

  2. Definition and Symbol • Similar triangles – Triangles that have the same shape • Symbol for similarity ~ • Example :

  3. Proportionality • Proportional – Related by a constant ratio • Similar triangles have proportional corresponding sides B’ B 10cm 16cm 5cm 8cm A C A’ C’ 6cm 12cm

  4. Ratios for proportional sides

  5. Congruent Corresponding Angles 75⁰ 65⁰ 40⁰ Similar Triangles have congruent corresponding angles

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