7.6 similarity transformations7.6 7.7.notebook 3 october 24, 2014 jan 108:01 am jan 108:09 am 7.7...
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7.6 Similarity TransformationsDilation: transformation that enlarges or reduces
a figure proportionally
Image: figure after the dilation
Preimage: original figure
Scale Factor of a Dilation: ratio of a length of the image to a corresponding length in the preimage
Center of Dilation: fixed point used for measurement when creating a dilation
image length preimage length
Distance Formula:
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(1.5,1) (1.5,1)
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7.7 Scale Drawings and ModelsScale drawing or scale model: a drawing or object that is proportional to the original
Scale: the ratio of the length on the drawing or model to the actual length
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1":2'
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Homework:
p. 515 #616 even
p. 520 #510
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