Similar Triangles and Proportions Flashcard

Flashcard
•
Mathematics
•
9th Grade
•
Hard
+5
Standards-aligned
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15 questions
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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.
Tags
CCSS.8.G.A.2
CCSS.HSG.CO.B.6
2.
FLASHCARD QUESTION
Front
What is the scale factor in similar triangles?
Back
The ratio of the lengths of corresponding sides of two similar triangles.
Tags
CCSS.8.G.A.2
CCSS.HSG.CO.B.6
3.
FLASHCARD QUESTION
Front
If triangle ABC is similar to triangle DEF, and the length of side AB is 4 cm and side DE is 8 cm, what is the scale factor?
Back
2 (DE/AB = 8/4 = 2).
Tags
CCSS.HSG.SRT.A.2
4.
FLASHCARD QUESTION
Front
How do you determine if two triangles are similar?
Back
Two triangles are similar if: 1) Their corresponding angles are equal, or 2) The lengths of their corresponding sides are proportional.
Tags
CCSS.HSG.SRT.A.2
5.
FLASHCARD QUESTION
Front
What is a proportion in mathematics?
Back
An equation that states that two ratios are equal.
Tags
CCSS.7.RP.A.2A
6.
FLASHCARD QUESTION
Front
Solve the proportion: 3/x = 6/12
Back
x = 6.
Tags
CCSS.7.RP.A.2C
7.
FLASHCARD QUESTION
Front
What is the Cross-Multiplication Method?
Back
A method used to solve proportions by multiplying the numerator of one ratio by the denominator of the other ratio.
Tags
CCSS.7.RP.A.3
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