A Pentagon
There is no name for a five sided regular polygon. A five sided polyhedron is called a pentahedron.
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Hexadecagon.
A quadrilateral.
A Pentagon
Five-sided shapes are called pentagons.
Pentagon.
There is no name for a five sided regular polygon. A five sided polyhedron is called a pentahedron.
um. a triangle...?
Quadrilateral.
Quadrilaterals.
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Hexadecagon.
A quadrilateral.
Not sure about a five sided shap, but a five sided plane shape is called a pentagon.
Five sided polygon is pentagon