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# Lines of Symmetry & Diagonals

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by

## Aryan Gosalia

on 11 February 2013

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#### Transcript of Lines of Symmetry & Diagonals

Lines Of Symmetry Regular Shapes 3 Sides Key Line of symmetry = Blue Diagonal = Red Line of symmetry and diagonal = Yellow Equilateral triangle Lines of symmetry: 3 Diagonals: 0 Lines of symmetry and diagonals: 0 Lines of symmetry: 1 Diagonals: 0 Lines of symmetry and diagonals: 0 Isoceles Triangle Lines of symmetry: 0 Diagonals: 0 Lines of symmetry and diagonals: 0 Scalene Triangle 4 Sides Definition: A line of symmetry divides a figure into two halves that are the mirror images of each other. (quadrilaterals) Square Lines of symmetry: 4 Diagonals: 2 Lines of symmetry and diagonals: 2 Rectangle Lines of symmetry: 2 Diagonals: 2 Lines of symmetry and diagonals: 0 Trapezoid Lines of symmetry: 0 Diagonals: 2 Lines of symmetry and diagonals: 0 Isosceles Trapezoid Lines of symmetry: 1 Diagonals: 2 Lines of symmetry and diagonals: 0 Kite Lines of symmetry: 1 Diagonals: 2 Lines of symmetry and diagonals: 0 Parallelogram Lines of symmetry: 2 Diagonals: 2 Lines of symmetry and diagonals: 0 Rhombus Lines of symmetry: 2 Diagonals: 2 Lines of symmetry and diagonals: 2 (Pentagon) 5 Sides Pentagon Lines of symmetry: 5 Diagonals: 5 Lines of symmetry and diagonals: 0 6 Sides (hexagon) Hexagon Lines of symmetry: 6 Diagonals: 9 Lines of symmetry and diagonals: 3 7 Sides (Heptagon) Heptagon Lines of symmetry: 7 Diagonals: 14 Lines of symmetry and diagonals: 0 8 Sides (Octagon) Octagon Lines of symmetry: 8 Diagonals: 20 Lines of symmetry and diagonals: 4 Irregular Shapes 4 Sides (quadrilaterals) Lines of symmetry: 1 Diagonals: 1 Lines of symmetry and diagonals: 1 Lines of symmetry: 0 Diagonals: 2 Lines of symmetry and diagonals: 0 Lines of symmetry: 0

Diagonals: 2

Lines of symmetry and diagonals: 0

5 Sides (Pentagon) Lines of symmetry: 1

Diagonals: 4

Lines of symmetry and diagonals: 0 Lines of symmetry: 0

Diagonals: 5

Lines of symmetry and diagonals: 0 Lines of Symmetry: 0

Diagonals: 4

Lines of symmetry and diagonals: 0 6 Sides

(Hexagon) Lines of symmetry: 1

Diagonals: 5

Lines of symmetry and diagonals: 1 Lines of symmetry: 1

Diagonals: 4

Lines of symmetry and diagonals: 0 (Heptagon) 7 Sides Lines of symmetry: 0

Diagonals: 7

Lines of symmetry and diagonals: 0 Lines of symmetry: 1

Diagonals: 14

Lines of symmetry and diagonals: 0 8 Sides (Octagon) Lines of symmetry: 0

Diagonals: 9

Lines of symmetry and diagonals: 0 Lines of symmetry: 0

Diagonals: 11

Lines of symmetry and diagonals: 1
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