Rotational Symmetry
Learn how rotational symmetry works, including the centre, angle, and order of rotation. Let's get started! 🚀
Video Lesson
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Flashcards
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🛎️ What is Rotational Symmetry?
- A shape has rotational symmetry if it looks the same after a turn of less than 360°.
- The shape is rotated about its centre of rotation.
🛎️ Order and Angle of Rotation
- The order of symmetry is the number of times a shape matches itself in a full 360° turn.
- The angle of rotation = 360° ÷ order (e.g. a rectangle has order 2, so the angle is 180°).
🛎️ How to Check for Rotational Symmetry?
- Rotate the shape around its centre and see if it matches its starting position.
- If it matches before 360°, the shape has rotational symmetry.
Practice Questions
Test your understanding
Interactive Activity
Explore rotational symmetry by spinning shapes
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