Scale Factor, Scale Copy, and Corresponding parts

If the scale factor is greater than one, the new figure will be

• a reduction

• an enlargement

• a scale

• not proportional

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Scale Factor

If the scale factor is less than one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

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Scale Factor

Find the triangle similar to △ABC

• 
• 
• 
• 

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Scale Copy

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

• 1/2
• 7/3
• 2/1
• 10/3

Tags

CCSS.7.G.A.1

What is the scale factor from the large triangle to the small triangle?

• 1/2

• 2/3

• 3/4

• 2

Tags

Scale Factor

What is the measurement of x?

• 20 m

• 24 m

• 16 m

• 4 m

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Scale Factor

What is the scale factor?

• 1/2

• 7/3

• 2

• 10/3

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Scale Factor

Matching sides are called

• Corresponding Sides

• Corresponding Angles

• The Same

• Congruent Sides

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Corresponding parts

Triangle ABC and XYZ are similar. Use your knowledge of scale factor to find the length of X.

• 20

• 25

• 100

• 40

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Scale Factor

Identify the side length in Figure 1 that corresponds to the side length MQ in figure 2.

• BC

• AE

• CD

• DE

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Corresponding parts