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A trapezoid is a 4 sided polygon belonging to the class of 4 sided quadrilaterals
Yes a square is a regular 4 sided polygon
The interior angles of a 36 sided polygon add up tp 6120 degrees
A four sided shape is a quadrilateral.
A four sided polygon is a quadrilateral.
A four sided figure is called a quadrilateral.
A square is a regular four-sided polygon.
All pyramids are four sided.
Four Sided Triangle was created in 1953.