Finite Figures
Finite figures, unlike lines, do not go on forever. They are shapes which have no translational symmetry. The shapes discussed in this unit will be regular polygons, defined as a shape with all its sides equal and all its angles equal. Regular polygons have reflections and rotations as symmetries – they have reflectional symmetry, and also rotational symmetry.
Symmetry Classification of quadrilaterals
Square – 8 symmetries – the regular quadrilateral
Rectangle and rhombus – 4 symmetries
Parallelogram, kite and isosceles trapezoid – 2 symmetries
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