HG U4D2 Executing Dilations Sept19

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Vocabulary:

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How is a dilation different from a reflection, rotation, and translation?

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What does it mean for two figures to be similar?

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How do you determine if a dilation is an enlargement or reduction?

Compare Figure 1 to each of the other figures and answer the following questions.

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Which figures are similar to figure 1?

Figure 2

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Figure 3

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Figure 4

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Match the diagrams below with the best name or phrase that describes the angles.

Stavka koja se može prevući		Odgovarajuća stavka
		Vertical Angles
		Same Side Interior Angles or Consecutive Interior Angles
		Triangle Sum Theorem
		Complementary Angles
		Linear Pair
		Alternate Interior Angles

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Triangle ABC is taken to triangle A'B'C' by dilation. Which of these scale factors for the dilation would result in an image that was LARGER than the original figure?

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Are these rectangles similar?

Yes

No

Maybe?

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Explain how you know.

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How can we prove the two triangles are similar?

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Explain how you know the triangles are similar.

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HG U4D2 Executing Dilations Sept19

How is a dilation different from a reflection, rotation, and translation?

What does it mean for two figures to be similar?

How do you determine if a dilation is an enlargement or reduction?

Which figures are similar to figure 1?

Match the diagrams below with the best name or phrase that describes the angles.

Triangle ABC is taken to triangle A'B'C' by dilation. Which of these scale factors for the dilation would result in an image that was LARGER than the original figure?

Are these rectangles similar?

Explain how you know.

How can we prove the two triangles are similar?

Explain how you know the triangles are similar.

How is a dilation different from a reflection, rotation, and translation?

What does it mean for two figures to be similar?

How do you determine if a dilation is an enlargement or reduction?

Which figures are similar to figure 1?

Use the definition of similar figures to justify your response.

How do the coordinates of Figure 2 compare to the coordinates of Figure 1?

How do the coordinates of Figure 4 compare to the coordinates of Figure 1?

Is having the same angle measurement enough to make two figures similar? Why or why not?

Match the diagrams below with the best name or phrase that describes the angles.

Triangle ABC is taken to triangle A'B'C' by dilation. Which of these scale factors for the dilation would result in an image that was LARGER than the original figure?

Are these rectangles similar?

Explain how you know.

How can we prove the two triangles are similar?

Explain how you know the triangles are similar.

Use the definition of similar figures to justify your response.

How do the coordinates of Figure 2 compare to the coordinates of Figure 1?

How do the coordinates of Figure 4 compare to the coordinates of Figure 1?

Is having the same angle measurement enough to make two figures similar? Why or why not?