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Testing 1. Pick up your homework on the table. 2. Grab a computer and log in 3. Wait at the desktop Test Code:
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Testing 1. Pick up your homework on the table. 2. Grab a computer and log in 3. Wait at the desktop Test Code:
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How would you describe a dilation?
1. Copy down the Essential Question (EQ). 2. Work on the Warm-up. Essential Question How would you describe a dilation? Warm Up: Describe the picture
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Vocabulary Dilation: a transformation that changes the size of a figure but not the shape. Verb for dilation: Change size
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HINT: SAME SHAPE, SAME DIRECTION, DIFFERENT SIZE
Dilation Examples A. B. Not a dilation; the figures are not similar. Yes a dilation; the figures are similar but different size. HINT: SAME SHAPE, SAME DIRECTION, DIFFERENT SIZE C. Not a dilation; the figures are not similar.
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Check It Out! Example 1 Tell whether each transformation appears to be a dilation. Explain. a. b. Yes, the figures are similar and the image is not turned or flipped. No, the figures are not similar.
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Draw the image, and answer the question.
Tell whether the blue figure is a dilation of the red figure. Explain
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Two type of Dilation
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Reduction Enlargement
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Dilation Day 1. Copy down the Essential Question (EQ). 2. Work on the Warm-up. Essential Question How does the scale factor affect the dilation transformation? Warm Up: How much bigger are the fries when compared to each other.
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Dilation Direction: Multiply each side of the triangle by a value of 2.
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Question: Is it larger or smaller?
Answer: Enlargement
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Definition Enlargement: When you multiply by a value greater than 1.
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Dilation Direction: Multiply each side of the triangle by a value of 𝟏 𝟐
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Question: Is it larger or smaller?
Answer: Reduction
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Definition Reduction: When you multiply by a value less than 1 but greater than 0.
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What is a scale factor? Scale factor definition The value that you multiply the shape in a dilation.
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Reduction because, the blue shape is smaller than the red.
The blue figure is a dilation of the red figure. Identify what type of dilation Find the scale factor Solution: Reduction because, the blue shape is smaller than the red. Scale factor is less than 1 but greater than 0 because it is a reduction.
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The blue figure is a dilation of the red figure.
Identify what type of dilation Find the scale factor
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Enlargement because, the blue shape is larger than the red.
The blue figure is a dilation of the red figure. Identify what type of dilation Find the scale factor Solution: Enlargement because, the blue shape is larger than the red. Scale factor is greater than 1 because it is a enlargement.
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Reduction because, the blue shape is smaller than the red.
The blue figure is a dilation of the red figure. Identify what type of dilation Find the scale factor Solution: Reduction because, the blue shape is smaller than the red. Scale factor is less than 1 but greater than 0 because it is a reduction.
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The blue figure is a dilation of the red figure.
Identify what type of dilation Find the scale factor
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Enlargement because, the blue shape is larger than the red.
The blue figure is a dilation of the red figure. Identify what type of dilation Find the scale factor Solution: Enlargement because, the blue shape is larger than the red. Scale factor is greater than 1 because it is a enlargement.
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