Module 2 Vocabulary for Similarity and Dilations

A transformation that produces a figure that is the same shape as the original figure but not the same size (does not preserve congruence because of the change in size)

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CCSS.8.G.A.3

The point from which a dilation is generated

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CCSS.8.G.A.3

in a dilation, the ratio of the distance of the new figure from the center of dilation to the distance of the original figure from the center of dilation. It has the ability to enlarge or reduce a figure through multiplication

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CCSS.8.G.A.3

when the scale factor is greater than one. You would be multiplying by a number (which could also be a decimal or fraction, not just a natural number) to increase the figure's size.

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CCSS.8.G.A.3

when the scale factor is between 0 and 1. They would be decimals or fractions that are equivalent to a number less than one. 

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CCSS.8.G.A.3

when two figures are ______, the ratios (fractions) of their corresponding side lengths are equal.

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

is the mapping, or movement of a plane and all the points of a figure on a plane according to a common action or operation. There are four types of transformations: the three rigid motions, translation, rotation, reflection, and then there is dilation which does not preserve a shape's congruence.

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CCSS.HSG.CO.A.2

The three rigid motions, reflection, rotation, and translation remain equal in size and shape therefore preserve their congruence. Dilations keep their shape but not the same size, so dilations do not ______ ___________.

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CCSS.HSG.CO.A.2

a new figure created from a transformation

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CCSS.HSG.CO.A.2

the original figure in a transformation

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CCSS.HSG.CO.A.2