12-2 G: Similar Triangles Reteach (Unit 4B)

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Mathematics
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9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What are similar triangles?
Back
Triangles that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.
2.
FLASHCARD QUESTION
Front
What is the Angle-Angle (AA) similarity criterion?
Back
If two angles of one triangle are equal to two angles of another triangle, then the triangles are similar.
3.
FLASHCARD QUESTION
Front
What is the Side-Side-Side (SSS) similarity criterion?
Back
If the corresponding sides of two triangles are in proportion, then the triangles are similar.
4.
FLASHCARD QUESTION
Front
What is the Side-Angle-Side (SAS) similarity criterion?
Back
If one angle of a triangle is equal to one angle of another triangle and the sides including these angles are in proportion, then the triangles are similar.
5.
FLASHCARD QUESTION
Front
How do you find the length of a side in similar triangles?
Back
Use the proportion of the corresponding sides of the triangles to set up a ratio and solve for the unknown length.
6.
FLASHCARD QUESTION
Front
What is a dilation in geometry?
Back
A transformation that produces an image that is the same shape as the original, but is a different size.
7.
FLASHCARD QUESTION
Front
What is the center of dilation?
Back
The fixed point in a dilation from which all points are expanded or contracted.
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