Understanding Dilations and Similar Triangles

This lesson covers the concept of dilations in geometry, explaining how they create similar triangles by maintaining proportional sides and congruent angles. It reviews the properties of dilations, including the role of the center of dilation and the scale factor. The lesson also discusses the angles formed by parallel lines cut by a transversal, such as alternate interior, corresponding, and alternate exterior angles. It concludes by verifying that dilations are similarity transformations, ensuring that all corresponding angles and sides are congruent and proportional, respectively.

Describe how corresponding angles behave under dilation.

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How can you verify that a dilation is a similarity transformation?

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What is the significance of congruent angles in proving similarity between triangles?

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