A polygon is a plane area which is bounded by straight lines. Its face, therefore, is itself.
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A solid with a regular polygon for each face is known as a perfect solid.
The base of a prism can be any polygon, but the polygon face parallel to the base must be congruent. True
Join up the hour-markers on a clock face and you will have a dodecagon - a 12 sided polygon.
A polygon is any 2-dimensional shape with straight sides. Such a shape with sides of equal length would be called an equilateral polygon. If it is also convex (all the angles face the same way), then it would be called a regular polygon.
A pentagon is a polygon that has 5 sides, 5 vertices and a flat face