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7-2 Similar Polygons

Dive into understanding and determining similarity in polygons, using scale drawings and proportionality for precise measurements and comparisons. Enhance your knowledge in geometry with practical examples and applications.

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7-2 Similar Polygons

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  1. 7-2 Similar Polygons

  2. Similar Figures: have the same shape but not necessarily the same size. You can abbreviate is similar to with the symbol ~

  3. Problem 1: Understanding Similarity

  4. Problem 2: Determining Similarity Are the polygons similar? If they are, write a similarity statement and give the scale factor.

  5. Are the polygons similar? If they are, write a similarity statement and give the scale factor.

  6. Problem 3: Using Similar Polygons

  7. Problem 4: Using Similarity

  8. Scale Drawing: all lengths are proportional to their corresponding actual lengths Scale: the ratio that compares each length in the scale drawing to the actual length Example: 1 cm to 50 km 1 in : 10 ft

  9. Problem 5: Using a Scale Drawing The diagram shows a scale drawing of the Golden Gate Bridge in San Francisco. The distance between the two towers is the main span. What is the actual length of the main span of the bridge (the length of the main span in the scale drawing is 6.4 cm).

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