# Arcs and Circles

This section describes the functions in the Draw Arcs/Circles menu. These functions let you draw full circles (360 degree arcs) and arcs defined in different ways. The Draw Arcs/Circles menu. ### Center Radius

This option lets you define the center of the circle, followed by the radius. ### Two Points

Use this option to define the circle by selecting two (diametrically opposite) points. Click the down arrow of the Center Radius icon to access this option. ### Three Points

Use this option to define the circle by selecting three points on the periphery of the circle. Click the down arrow of the Center Radius icon to access this option. ### Tangent Two Elements

This option lets you define a circle tangent to two elements, of a defined radius.

You first write the radius, then you select the two elements the circle is to be tangent to. Last you select which of the solutions you want to keep. ### Tangent Center on Line

This option lets you define a circle tangent to one element, with its center on a line, of a defined radius.

You first write the radius, then you select the line the center is to be on, and the element the circle is to be tangent to. Last you select which of the solutions you want to keep. ### Tangent through Point

This option lets you define a circle tangent to one element, through a point, of a defined radius.

You first select the point the circle is to go through then write the radius, and select the element the circle is to be tangent to. Last you select which of the solutions you want to keep. ### Tangent Three Elements

Use this option to define a circle tangent to three elements.

You select the three elements the circle is to be tangent to, and then you select which of the solutions you want to keep. ### Two Points

This option lets you draw an arc by selecting the endpoints of the arc, entering the radius, and selecting which solution you want to keep. ### Three Points

This option lets you draw an arc by selecting three points. The arc created will not cross the zero degree point (3 o'clock). The selection order of the three points is unimportant. ### Start and End Angles

Use this option to define an arc by its center point, radius, starting angle, and end angle. ### Tangent Dynamic

Use this option to construct dynamic tangent from one element through a point.