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7.2 Similar Polygons


Answer: Have the same shape (angle measures), byt not necessarily the sane size (side lengths)
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Answer: Are similar
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Question: Similarity ratio/ constant of proportionality
Answer: w1 L1 3

w2 L2 4
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Question: Def. of similar polygons
Answer: Two polygons are similar iff their corresponding angles are congruent, and their corresponding sides are proportional.
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Question: A square and rhombus have the same side lengths. Are they similar?
Answer: Not necessarily, the corresponding angles may not be congruent.
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Question: Are two squares always similar?
Answer: Yes
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Question: Are two triangles always similar?
Answer: No
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Question: Are two equilateral triangles always similar?
Answer: Yes
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Question: Are two hexagons always similar?
Answer: No
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Question: Are two regular hexagons always similar?
Answer: Yes
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Question: What is the similarity ratio for two congruent figures?
Answer: 1:1
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Question: Are two congruent figures always similar?
Answer: Yes, by definition
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