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Similarity and Congruency

Similarity and Congruency. Congruent means same size and same shape. Similar means angles are congruent but the edges are proportional. It is very important to find corresponding angles and edges in similar figures.

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Similarity and Congruency

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  1. Similarity and Congruency

  2. Congruent means same size and same shape Similar means angles are congruent but the edges are proportional

  3. It is very important to find corresponding angles and edges in similar figures.

  4. Example #1 These are similar triangles, name the corresponding angles and edges. E F ABC  EFD C B A A  E B  F C  D D

  5. Example 2: These three triangles are similar. What is the simplified ratio of the first figure to the second figure and the simplified ratio of the second figure to the third figure? 18 in. 15 in. 10.5 in. 32 in. 38.4 in. The ratio of the first to the second is The ratio of the second to the third is 20 in. 14 in. Example #3: What is the ratio of the first to the third?

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