Finding Angle Measures

Topic:
Geometry

Explore the vertical angles below to test the vertical angle theorem.

Look at the image above

What do you notice about the measures of the RED angles and the BLUE angles?

Look at the image below and answer the question

What is the measure of angle ACD (red)? How do you know?

Look at the image above

What are the angle measures for angles x, y, and z?

What are the angle measures of angles h, j, k and m?

Review: Sequences of Transformations

Below, practice identifying the sequences of transformations that produce the given image and preimage.

What series of transformations would take ABC to DEC?

Check all that apply

What series of transformations take ABCD to ECGF?

Look at the image above

What series of transformations take ABCD to ECGF?

Review Symmetry

Review the applets below to practice identifying symmetry.

How many lines of symmetry does the "H" have? (Shape #12)

Use the applet above to check the rotation symmetry of the shapes. What angles give rotation symmetry for image #3?