Notes

1. If a 12-sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with the pre image? 30 Correct

2. A four-sided polygon has these properties of rotation and reflection:
When it rotates 360°, it maps onto itself at four different angles of rotation.
It can be reflected onto itself across four different lines of reflection.
Which kind of polygon must it be? square Correct

3. A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during the rotation? 8 Correct

4. Regular decagon ABCDEFGHIJ rotates 360° counterclockwise about its center. At which angle of rotation does A′ (the image of A) coincide with D? 72 false 36 false

5.Which transformation will always map a parallelogram onto itself? a 180

An irregular parallelogram rotates 360° about the midpoint of its diagonal. How many times does the image of the parallelogram coincide with its preimage during the rotation? 8 false

Square GHIJ shares a common center with regular hexagon ABCDEF on a coordinate plane. AB⎯⎯⎯⎯⎯ is parallel to GH⎯⎯⎯⎯⎯⎯. If the combined figure rotates clockwise about its center, at which angle of rotation will the image coincide with the pre image? 60 false 180 false

Fiona is drawing polygons on a computer. She wants to map a regular 9-sided polygon back onto itself using a reflection. Which set of lines can Fiona choose from for her line of reflection?
any line parer false

A regular pentagon shares a common center with a regular hexagon. If LM⎯⎯⎯⎯⎯⎯ || AB⎯⎯⎯⎯⎯, across how many lines of reflection can the combined figure be reflected to map onto itself? 6 3 false