What is similarity in geometry?
Similarity Unit 4 (CIA 2) Review

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Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Similarity in geometry refers to the relationship between two shapes that have the same shape but may differ in size. This means that their corresponding angles are equal and their corresponding sides are in proportion.
2.
FLASHCARD QUESTION
Front
What is a scale factor?
Back
A scale factor is a number that scales, or multiplies, some quantity. In the context of similar figures, it is the ratio of the lengths of corresponding sides of two similar figures.
3.
FLASHCARD QUESTION
Front
How do you set up a proportion for similar triangles?
Back
To set up a proportion for similar triangles, compare the lengths of corresponding sides. For triangles ABC and DEF, if AB/DE = AC/DF, then the triangles are similar.
4.
FLASHCARD QUESTION
Front
What is the similarity statement for triangles?
Back
A similarity statement indicates that two triangles are similar. It is written as ΔABC ∼ ΔDEF, meaning triangle ABC is similar to triangle DEF.
5.
FLASHCARD QUESTION
Front
How do you find the value of x in similar triangles?
Back
To find the value of x in similar triangles, set up a proportion using the lengths of corresponding sides and solve for x.
6.
FLASHCARD QUESTION
Front
What is the relationship between corresponding angles in similar triangles?
Back
In similar triangles, corresponding angles are equal.
7.
FLASHCARD QUESTION
Front
What is the relationship between corresponding sides in similar triangles?
Back
In similar triangles, the lengths of corresponding sides are proportional.
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