# Arcs and Circles

The **Draw Arcs/Circles** toolbar lets you draw full circles (360 degree arcs) and arcs.

### Center Radius

Center radius lets you define the center of the circle, followed by the radius.

### Two Points

Two points lets you define the circle by selecting two (diametrically opposite) points.

### Three Points

Three points lets you define the circle by selecting three points on the periphery of the circle.

### Tangent Two Elements

Tangent two elements 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

Tangent center on line 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

Tangent through point 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

Tangent three elements defines 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

Two points 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

Three points lets you draw an arc by selecting three points. Note that 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

Start and end angles lets you define an arc by its center point, radius, starting angle, and end angle.

### Tangent Dynamic

Construct dynamic tangent from one element through point.