Angle Measures of Rotated Figures

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Exploration

GR. 6-8

Skill:

Verify how properties and relationships of geometric figures are maintained or how they change through transformations.

Angle Measures of Rotated Figures

Explore how figures are affected by rotations and verify that their angle measures remain unchanged.

Open-ended question 1

How are the image and the pre-image different?

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Open-ended question 2

What stays the same after a rotation?

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Open-ended question 3

How can you use the triangles in the grid to show that an image has the same angle measurements as a pre-image?

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Open-ended question 4

Can you use the triangles in the grid in the same way to show that the angle measurements of the image and pre-image of a right triangle are the same? Why or why not?

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