What is the definition of similar triangles?
Similarity & Proportions

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Mathematics
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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 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.
3.
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.
4.
FLASHCARD QUESTION
Front
What is the definition of proportional sides?
Back
Sides of two or more figures that have the same ratio to each other.
5.
FLASHCARD QUESTION
Front
If triangle ABC is similar to triangle DEF, and AB = 4, DE = 8, what is the ratio of their corresponding sides?
Back
The ratio is 1:2.
6.
FLASHCARD QUESTION
Front
How do you find the missing length in similar triangles?
Back
Set up a proportion using the lengths of the corresponding sides of the similar triangles.
7.
FLASHCARD QUESTION
Front
If two triangles have sides of lengths 3, 4, and 5, and 6, 8, and 10, are they similar?
Back
Yes, they are similar because the sides are in proportion (1:2).
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