Angles of Rotation in Regular Polygons
Grade 9 · Math · 45 min· G-co.3 Given A Regular Polygon, Describe The Rotations And Reflections That Carry It Onto Itself.
What's Included
Learning Objective
Students will describe and calculate the angles of rotation that carry a regular polygon onto itself.
Warm-Up Video
Unknown Channel · 5:00
Rotational Symmetry & Angles of Rotation | Geometry | Eat Pi
Practice Questions
7 questions · Short answer
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.”
Complete Lesson Package
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