I read this on the internet that SOMETIMES a circle is considered a polygon with infinite number of sides. I read this on the internet that SOMETIMES a circle is considered a polygon with infinite number of sides. Does A Circle Have Zero Sides And Corners Or An Infinite Number Of Sides And Corners Is A Circle A Polygon Or Not The Calculus Logic Design Regular Polygon Find an answer to your question Is a circle a polygon. . The following figure is not a polygon as it is not a closed figure. A circle is not a polygon. A circle consists of a curved line not a straight line. A polygon is defined as being a geometric figure with three or more sides a circle has only one side its circumference which is a continuous circular line. The distance from the center is called the radius and the point is called the center. As a circle is curved it cannot be formed. Rachel12738 rachel12738 04282020 Mathematics High School