Angles of Rotation in Regular Polygons
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Objective
Students will describe and calculate the angles of rotation that carry a regular polygon onto itself.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
Define rotational symmetry in your own words.
Explain how to determine if a polygon is a regular polygon.
Part 3 of 3
Exit ticket
Quick comprehension check
“What is the smallest angle of rotation that will map a regular nonagon (9 sides) onto itself? Show your work. A regular dodecagon (12 sides) is rotated 30°. Does this rotation map the dodecagon onto itself? Explain why or why not. A regular pentagon is rotated around its center. List three different angles of rotation, less than 360°, that will map the pentagon onto itself. Show your work.”
Sample answer included in the free materials
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Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
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