What this chapter is about
Symmetry is one of the most beautiful and universal concepts in both mathematics and nature. A snowflake, a butterfly, the petals of a flower, the design on a playing card, the letter "A" — all exhibit symmetry. Symmetry gives visual harmony and structural balance. Artists, architects, designers, and engineers all harness the idea of symmetry in their work.
In mathematics, symmetry is about balance and invariance — a figure is symmetric if some transformation (like reflection or rotation) maps it exactly onto itself.
Learning objectives
- 1Explain class 7 Mathematics
- 2Explain line Symmetry (Reflection Symmetry)
- 3Explain number of Lines of Symmetry for Common Figures
- 4Explain lines of Symmetry in Regular Polygons
- 5Explain symmetry in Letters of the Alphabet
- 6Explain rotational Symmetry
Your learning path
Key terms
SquareCircleRegular hexagonEquilateral triangleRhombusRectangleline symmetryRegular n-gonline of symmetryaxis of symmetryRegular pentagonangle of rotationIsosceles trianglecenter of rotationrotational symmetryRectangle (non-square)
Connected chapters
9Concepts
2Formulae
6Minutes