More Dilations (Day 4)

​More Dilations

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Multiple Choice

What is Dilation?

• Dilation means to enlarge or reduce
• Dilation means to reflect on something
• Dilation means to like something
• Dilation means to make something different by making it smaller

Multiple Choice

Two figures are congruent if they have the _______ shape and _______ size.

• Different, Same
• Same, Same
• Same, Different
• Different, Different

Fill in the Blanks

Are these figures congruent?

​Multiply all the coordinate numbers by 3.

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Vertex A (4,-2), A' (12, -6)

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Vertex B (-2,-2), B' (-6, -6)​

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Vertex C (-2,2)​, C' (-6, 6)

​Draw the dilation of triangle ABC, with center (0,0), and scale factor 3. Label this triangle A'B'C'.

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Multiple Choice

Apply a dilation of triangle ABC, with center (0,0), and scale factor 2.

A' will be at ...

• (8,-4)

• (2,2)

Multiple Choice

Apply a dilation of triangle ABC, with center (0,0), and scale factor 2.

B' will be at ...

• (-4,-4)

• (-2,-2)

Multiple Choice

Apply a dilation of triangle ABC, with center (0,0), and scale factor 2.

C' will be at ...

• (-4,4)

• (-2,-2)

Draw

Draw the dilation of triangle ABC, with center (0,0), and scale factor 2. Label this triangle A'B'C'.

Multiple Choice

Apply a dilation of triangle ABC, with center (0,0), and scale factor 1/2.

A' will be at ...

• (-4,4)

• (-2,-1)

Multiple Choice

Apply a dilation of triangle ABC, with center (0,0), and scale factor 1/2.

B' will be at ...

• (-2, 2)

• (-1,- 1)

Multiple Choice

Apply a dilation of triangle ABC, with center (0,0), and scale factor 1/2.

C' will be at ...

• (-4, 2)

• (-1, 1)

Draw

Draw the dilation of triangle ABC, with center (0,0), and scale factor 1/2. Label this triangle A'B'C'.

Fill in the Blanks

Triangle A'B'C' is as the result of dilation with the center of (0,0) and scale factor of 2 of triangle ABC.

True or False.

Dilations of an angle must be congruent to the original angle.    

Fill in the Blanks

Triangle A'B'C' is as the result of dilation with the center of (0,0) and scale factor of 2 of triangle ABC.

True or False.

Dilations of a segment must be congruent to the original segment.    

Fill in the Blanks

Triangle A'B'C' is as the result of dilation with the center of (0,0) and scale factor of 2 of triangle ABC.

True or False.

Dilations of a triangle must be congruent to the original triangle.