Ms. Lean's 8th Grade Math - Home
Similar Figures Math 8
Name: _______________________ Date: ____________________
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Dilations do not preserve length, so dilations are not rigid motions. A _________________ _______________________ is a dilation or a sequence of dilations and rigid motions.
Two figures are _________________________ when one can be obtained from the other by a similarity transformation. Similar figures have the _____________ shape but _____________ _____________________ the same size. The triangles below are similar.
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EXAMPLE 1: Identifying Similar Figures
Determine whether ΔABC and ΔJKL are similar.
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EXAMPLE 2: Describing a Similarity Transformation
The red figure is similar to the blue figure. Describe a similarity transformation between the figures.
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EXAMPLE 3: Modeling Real Life
|[pic] |An artist draws a replica of a painting that is on the Berlin |[pic] |
| |Wall. The painting includes a red trapezoid. The shorter | |
| |base of the similar trapezoid in the replica is 3.75 inches. | |
| |What is the height, h, of the trapezoid in the replica? | |
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