Map a Polygon Onto Itself

Which polygon always has a minimum rotation of 180° about its center to carry it onto itself?

• Rectangle

• Square

• Isosceles trapezoid

Which number of degrees below describes an angle that can rotate this regular polygon back onto itself?

• 280

• 90

• 45

• 120

What line could you reflect this shape over to map it onto itself?

• y = 3

• x = 3

• y = - 3

• y = 3

Which rotation about its center will carry a regular decagon onto itself?

• 54°

• 162°

• 198°

• 252°

Which of the following is a line of symmetry for this shape?

• x = 3

• x = -1

• y = -1

• y = 3

Which transformation will map the figure onto itself?

• 90 degree rotation about the center

• 180 degree rotation about the center

• 270 degree rotation about the center

• none of the above

Which of the following lines could this shape be reflected over to map onto itself? (there are two answers!)

• x = -1

• x = 1

• y = -1

• y = 1

Which of the following transformations carry this regular polygon onto itself?

• Rotation of 45 degrees counterclockwise

• Rotation of 60 degrees clockwise

• Rotation of 60 degrees counterclockwise

• Rotation of 36 degrees counterclockwise

which transformation will map the regular octagon onto itself?

• 30 degree rotation about the center

• 45 degree rotation about the center

• 120 degree rotation about the center

• 225 degree rotation about the center

• 270 degree rotation about the center

Which of the following transformation will map the regular pentagon onto itself?

• reflection across blue line

• reflection across green line

• 108 degree rotation about the origin

• 216 degree rotation about the origin