Determining Similar Figures

The triangles are similar, solve for the missing length of the larger triangle. A proportion would be helpful to set up.

• 8

• 12.5

• 18

• 24

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CCSS.HSG.SRT.A.2

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the Scale Factor from ABCD (original) to MNOP (new)?

• 2/3

• 3/2

• 2

• 3

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CCSS.7.G.A.1

What is the Scale Factor from Shape A (original) to shape B (new)?

• 1

• 2

• 3

• 4

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CCSS.7.G.A.1

Figure ABCDE is similar to figure VWXYZ. Which proportion must be true?

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CCSS.HSG.SRT.A.2

Are the following similar? Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

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CCSS.HSG.SRT.A.2

• A

• B

• C

• D

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CCSS.HSG.SRT.A.2

Are the two figures similar?

• yes

• no

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Figure ABCDE is similar to figure VWXYZ.

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CCSS.HSG.SRT.A.2

Figure JKLM is similar to figure PQRS.

Which proportion must be true for

these figures?

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• 

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CCSS.HSG.SRT.A.2