TEKS.MATH.8.10D

When you dilate a figure you...

• slide it.
• turn it.
• flip it.
• make it larger or smaller.

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TEKS.MATH.8.10D

Describe the transformation:
4f(x)

• Horizontal Stretch
• Horizontal Compress
• Vertical Stretch
• Vertical Compress

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TEKS.MATH.8.10D

a transformation that changes the size of a figure, but not the shape

• translation
• rotation
• reflection
• dilation

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TEKS.MATH.8.10D

Which statement is true?

• A
• B
• C
• D

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TEKS.MATH.8.10D

A triangle is dilated by a scale factor of 2. If the original area was 24, what will be the new area?

• 24
• 2
• 12
• 48

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TEKS.MATH.8.10D

A square is dilated by a scale factor of 4.3. Which statement is true?

• The perimeter of the new square will be 18.49 times the perimeter of the old square.
• The perimeter of the new square will be 3 times the perimeter of the old square.
• The area of the new square will be 4.3 times the area of the old square.
• The area of the new square will be 18.49 times the area of the old square.

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TEKS.MATH.8.10D

Dilations will always keep the same ________

• Orientation
• Size
• Area
• Perimeter

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TEKS.MATH.8.10D

A figured is dilated by a scale factor of 3. What rule could be used to find the new area?

• a --> 3a

• a --> 3(3)a

• a --> 3 + a

• a --> 3 + 3 + a

• not here

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TEKS.MATH.8.10D

Which transformation enlarges or reduces a pre-image?

• Translation

• Rotation

• Reflection

• Dilation

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TEKS.MATH.8.10D

A rectangle is dilated by a scale factor of 2.

What happens to the area?

• doubles

• triples

• quadruples

• not enough information

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TEKS.MATH.8.10D