Geometry Similarity Proportions

Find the length of side PQ

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CCSS.HSG.SRT.A.2

The perimeter of yard is 90 feet. The ratio of the length and the width of the yard is 6:3. Find the length of the yard.

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CCSS.3.MD.D.8

Find the length of side PR

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CCSS.HSG.SRT.A.2

A tree is 58 feet tall and it casts a 29 foot shadow. Near by is a 6 foot tall man. How long is the shadow he casts on the ground?

(Remember your units!)

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CCSS.HSG.SRT.B.4

Which is the correct way to write a congruency statement about the two figures shown?

• FED ~ TSR

• FED ~ RST

• FED ~ STR

• FED ~ RTS

• They are all correct.

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CCSS.HSG.CO.B.7

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because corresponding angles are congruent and corresponding sides are in proportion.

• No, not similar because corresponding angles are congruent, but corresponding sides are NOT in proportion.

• Yes, same shape

• No, different sizes

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the scale factor from triangle ABC to triangle DEF?

• 1/2

• 7/3

• 2

• 10/3

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CCSS.7.G.A.1

The following triangles are similar.
AC ∼

•  DF

• AB 

•  ED

•  FC

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CCSS.HSG.SRT.A.2

Rectangle ABCD and rectangle DEFG are similar figures. Which of the following proportions is true for the figures?

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CCSS.HSG.SRT.A.2

Triangle ABC and triangle WXY are similar figures. Which of the following proportions is true for the figures?

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CCSS.HSG.SRT.A.2