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4 cards from this section. Quick, good the night before a test.
What does it mean for two figures to be similar?
Think about shapes that look the same but are not the same size.
List the three criteria for triangle similarity.
Recall the initials of these criteria.
Which of the following is NOT a criterion for triangle similarity?
Think of the commonly used acronyms we studied.
If two triangles have their sides in the ratio 2:3 and the angles are equal, are the triangles similar?
Remember the AAA criterion.
Given triangle XYZ has angles 60°, 70°, and 50°, and triangle ABC has angles 60° and 70°, determine the similarity of the triangles and justify your conclusion.
Use the property of angles and what they sum to in a triangle.
Triangle DEF has sides of length 6, 8, and 10. Triangle GHI has sides of length 3, 4, and 5. Are these triangles similar? Justify your answer using appropriate criteria.
Compare the ratios of the sides directly.
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