Similar Figures and Proportions
Flashcard
•
Mathematics
•
7th Grade
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What are similar figures?
Back
Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and the lengths of their corresponding sides are proportional.
Tags
CCSS.8.G.A.2
CCSS.HSG.CO.B.6
2.
FLASHCARD QUESTION
Front
What does it mean for two figures to be proportional?
Back
Two figures are proportional if the ratios of their corresponding side lengths are equal.
Tags
CCSS.8.G.A.2
CCSS.HSG.CO.B.6
3.
FLASHCARD QUESTION
Front
How do you find a missing side length in similar figures?
Back
To find a missing side length, set up a proportion using the lengths of corresponding sides from the similar figures and solve for the unknown.
Tags
CCSS.HSG.SRT.A.2
4.
FLASHCARD QUESTION
Front
If two triangles are similar, what can you say about their angles?
Back
If two triangles are similar, their corresponding angles are equal.
Tags
CCSS.8.G.A.2
CCSS.HSG.CO.B.6
5.
FLASHCARD QUESTION
Front
What is the formula for finding 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.
Tags
CCSS.7.G.A.1
6.
FLASHCARD QUESTION
Front
If the scale factor of two similar figures is 3:2, what does this mean?
Back
This means that for every 3 units of length in the larger figure, there are 2 units of length in the smaller figure.
Tags
CCSS.7.G.A.1
7.
FLASHCARD QUESTION
Front
How do you solve for a variable in a proportion?
Back
Cross-multiply the terms in the proportion and then isolate the variable to solve for it.
Tags
CCSS.7.G.A.1
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