There are 22
A trapezoid is a 4 sided polygon belonging to the class of 4 sided quadrilaterals
Yes a square is a regular 4 sided polygon
360 degrees
The interior angles of a 36 sided polygon add up tp 6120 degrees
octagon
A four sided polygon is a quadrilateral.
A decagon
A four sided figure is called a quadrilateral.
A square is a regular four-sided polygon.
Four Sided Triangle was created in 1953.
if its a four sided pyramid then four. if its a three sided pyramid then four.