In fact, circles and circular arcs are ellipses and elliptic arcs. When being created, they are set to be the circular special cases; but, they do not differ from elliptic objects in anything more significant then just a few property values. Therefore, circles have two radii and other properties which might seem useless.

See Elliptic arcs for full description.

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**Circular arc defined by three points on its perimeter**

Creates a circular arc defined by three points on its perimeter. The three points must not be collinear.

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**Circular arc defined by the center point and radius**

Creates a circular arc defined by the center point and radius. The radius, the end point parameters, etc. can be modified in the Property editor.

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**Circle defined by three points on its perimeter**

Creates a circle defined by three points on its perimeter. The three points must not be collinear.

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**Circle by the center point and a point**

Creates a circle defined by the center point and a point on its perimeter.

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**Circle by the center point and radius**

Creates a circle defined by the center point and radius. The radius can be modified in the Property editor.