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4 cards from this section. Quick, good the night before a test.
Define similar figures.
Think about shapes that might be the same shape but different sizes.
What does the Basic Proportionality Theorem state?
Consider what happens when you draw a line parallel to a triangle's base.
Which of the following statements about similar triangles is TRUE?
Recall what properties define similar figures.
If two triangles have corresponding sides in the ratio of 2:5, are they similar?
Think about the conditions for similarity.
Three similar triangles have sides measuring 5 cm, 12 cm, and 13 cm. If one triangle has a side measuring 15 cm, what is the corresponding side in the other triangles?
Use the ratio of known sides to calculate the unknowns.
Create a real-world problem involving similar triangles that involves calculating heights or distances. Show how you would set up the proportions.
What known figures can you compare?
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