What is a three-sided shape called? What is a nine-sided shape called? Children can find out the many polygon names - all the way up to a do a dodecagon!

Heptagon is one of the types of polygon which has 7 sides. It has seven sides of equal measure and has seven interior angles which are also equal in measure.

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Wow this took a long time. Loved the geometry between the and 7 sided polygons. Will have to do this again, because it all came apart while I was moving.

Heptagon is one of the types of polygon which has 7 sides. It has seven sides of equal measure and has seven interior angles which are also equal in measure. Heptagon is also called as Septagon.