Concept 1 of 8Foundation
Watch on YouTubeVideoWhat is symmetry?
Symmetry means balance. A shape is symmetric if one part matches another exactly under some operation — folding, rotating, or mirror-reflecting.
Two main types:
- Line (reflection) symmetry — if you fold it, halves match.
- Rotational symmetry — spin it and it looks the same.
Symmetry is everywhere: butterflies, faces, flowers, snowflakes, buildings.
Example
A butterfly's wings: left matches right when folded along the body line. Line symmetric.
💡 Tip:Symmetry is the mathematics of 'sameness' under a change.
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5 questions to check what you just read.
0 / 5
- Q1.An object that looks the same after a fold or rotation has:
- Q2.Two main types of symmetry:
- Q3.A butterfly shows symmetry because:
- Q4.A shape that doesn't match any fold line:
- Q5.Most human faces are approximately: