1. 9.3
More Rotations
Not Isometries
Isometry

2. Rotating about a Fixed Point
Point O is the center of Regular Octagon ABCDEFGH. Name the image of each point or segment.
45⁰ rotation of H about O.
90⁰ rotation of D about O.
135⁰ rotation of CB about O.
180⁰ rotation of AH about O.
315⁰ rotation of A about O.
360⁰ rotation of GF about O. O

3. Point X is the center of Regular Hexagon ABCDEF.
What is the measure of the angle of rotation that maps B onto E?
What is the image of FE after a 300⁰ rotation about X? X

4. Find the angle of rotation about C that maps FGH to F’G’H’.
Use a protractor to measure the angle

7. Find the coordinates of DEF after a 90⁰ clockwise rotation about the origin.