
Lines of Symmetry
Grade 9th Grade · Math · 45 min
What's Included
Learning Objective
I can identify and apply lines of symmetry in geometric figures.
Warm-Up Video
mathantics · 11:45
Math Antics - Symmetry
Guided Notes
3 key concepts
- 1
Line symmetry is also known as reflection symmetry or mirror symmetry.
- 2
Rotational symmetry means that a shape can be rotated a certain amount and match the unrotated shape.
- 3
The order of rotation is how many times the shape matches in a complete rotation, and the angle of rotation is the smallest angle needed to rotate a shape for it to match the starting shape.
Practice Questions
7 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“Draw a rectangle and draw all of its lines of symmetry.”
Complete Lesson Package
Get all 3 ready-to-use resources:


