A shape can have one side, as in a circle or an ellipse; and there are no limits to the maximum number of sides a polygon can have.
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All regular shapes have congruent sides.
Regular shapes are shapes where all the sides and angles are equal. One example of a regular shape is a square because all the sides are the same and all the angles are 90 degrees.
There are many such shapes. Any polygon with an even number of sides can have opposite sides that meet the above requirements.
All regular polygons with an even number of sides. Irregular polygons with an odd number of sides can have parallel sides. There are also non polygonal shapes that can have parallel sides.
Name of all polygons until 12 sides. Move the mouse over the shapes to discover their properties. Triangle Square Pentagon Hexagon Heptagon Octagon Nonagon Decagon Hendecagon Dodecagon These shapes are known as regular polygons. A polygon is a many sided shape with straight sides. To be a regular polygon all the sides and angles must be the same.