The default method for drawing a circle is to specify a center point and radius. You can draw circles using any of the following methods:
• CenterRadius ()
• CenterDiameter ()
• 2Points ()
• 3Points ()
• RadiusTangents ()
• TanTanTan
• Convert Arc to Circle ()
To draw a circle by specifying its center and radius
1 Do one of the following to choose Circle CenterRadius ():
• On the ribbon, choose Home > Circle CenterRadius or choose Draw > Circle CenterRadius.
• On the menu, choose Draw > Circle > Circle CenterRadius.
• On the Draw toolbar, click the Circle CenterRadius tool.
• Type circle and then press Enter.
2 Specify the center point.
3 Specify the radius of the circle.

Center point (A) and radius (B).

To draw a circle by specifying its center and diameter
1 Do one of the following to choose Circle CenterDiameter ():
• On the ribbon, choose Home > Circle CenterDiameter or choose Draw > Circle CenterDiameter. Skip step 3.
• On the menu, choose Draw > Circle > Circle CenterDiameter. Skip step 3.
• On the Draw toolbar, click the Circle tool.
• Type circle and then press Enter.
2 Specify the center point.
3 In the prompt box choose Diameter.
4 Specify the second point indicating the diameter of the circle.

Center point (A) and diameter (B).

To draw a circle by specifying two endpoints of the diameter
1 Do one of the following to choose Circle 2Points ():
• On the ribbon, choose Home > Circle 2Points or choose Draw > Circle 2Points. Go to step 3.
• On the menu, choose Draw > Circle > Circle 2Points. Go to step 3.
• On the Draw toolbar, click the Circle tool.
• Type circle and then press Enter.
2 In the prompt box choose 2 Points.
3 Specify the first endpoint of the diameter of the circle.
4 Specify the second endpoint of the diameter of the circle.

First endpoint (A) and second endpoint (B).

To draw a circle by specifying three points on the circumference
1 Do one of the following to choose Circle 3Points ():
• On the ribbon, choose Home > Circle 3Points or choose Draw > Circle 3Points. Go to step 3.
• On the menu, choose Draw > Circle > Circle 3Points. Go to step 3.
• On the Draw toolbar, click the Circle tool.
• Type circle and then press Enter.
2 In the prompt box choose 3 Points.
3 Specify the first point on the circumference of the circle.
4 Specify the second point on the circumference of the circle.
5 Specify the third point on the circumference of the circle.

First point (A), second point (B), third point (C).

To draw a circle by specifying its radius and two tangent points
1 Do one of the following to choose Circle RadiusTangents ():
• On the ribbon, choose Home > Circle RadiusTangents or choose Draw > Circle RadiusTangents. Go to step 3.
• On the menu, choose Draw > Circle > Circle RadiusTangents. Go to step 3.
• On the Draw toolbar, click the Circle tool.
• Type circle and then press Enter.
2 In the prompt box, choose TangentTangentRadius.
3 Select the first entity that you want the circle to touch
4 Select the second entity that you want the circle to touch.
5 Specify the radius of the circle.

Tangent lines (A) and (B) and radius of circle (C).

To draw a circle tangent to three entities
1 Do one of the following to choose TanTanTan ():
• On the ribbon, choose Home > Circle TanTanTan or choose Draw > Circle TanTanTan. Go to step 3.
• On the menu, choose Draw > Circle > TanTanTan. Go to step 3.
• On the Draw toolbar, click the Circle tool.
• Type circle and then press Enter.
2 In the prompt box, choose TangentTangentTangent.
3 Select the first entity that you want the circle to touch
4 Select the second entity that you want the circle to touch.
5 Select the third entity you want the circle to touch.

First tangent entity (A), second tangent entity (B) and third tangent entity (C).

To convert an arc to a circle
1 Do one of the following to choose Convert Arc to Circle ():
• On the ribbon, choose Home > Convert Arc to Circle or choose Draw > Convert Arc to Circle.
• On the menu, choose Draw > Circle > Convert Arc to Circle.
• On the Draw toolbar, click the Convert Arc to Circle tool.
Go to step 3.
• Type circle and then press Enter.
2 In the prompt box, choose Turn Arc Into Circle.
3 Select the arc you want to convert to a circle.

Select an arc (A) to convert to a circle.
