Symmetry
A 2D shape is symmetrical if a line can be drawn through it so that either side of the line looks exactly the same. The line is called a line of symmetry.
Square
4 lines of symmetry
Equilateral triangle
3 lines of symmetry
Rectangle
2 lines of symmetry
Isosceles triangle
1 line of symmetry
Parallelogram
0 lines of symmetry
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