What are similar figures?
Similar Figures

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•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Similar figures are shapes 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 does it mean for two figures to be similar?
Back
Two figures are similar if their corresponding angles are equal and the lengths of their corresponding sides are proportional.
3.
FLASHCARD QUESTION
Front
How do you find the scale factor between two similar figures?
Back
The scale factor is found by dividing the length of a side of one figure by the length of the corresponding side of the other figure.
4.
FLASHCARD QUESTION
Front
If two triangles are similar, what can we say about their corresponding sides?
Back
The ratios of the lengths of their corresponding sides are equal.
5.
FLASHCARD QUESTION
Front
What is the relationship between the areas of two similar figures?
Back
The ratio of the areas of two similar figures is equal to the square of the ratio of their corresponding side lengths.
6.
FLASHCARD QUESTION
Front
If the scale factor of two similar figures is 2:3, what is the ratio of their areas?
Back
The ratio of their areas is 4:9, since (2^2):(3^2) = 4:9.
7.
FLASHCARD QUESTION
Front
How do you solve for a missing side length in similar figures?
Back
Set up a proportion using the lengths of the corresponding sides and solve for the unknown length.
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