# Constructing Circles

You can use one of several methods to create Circles.

To construct a Circle from its center point and radius:

- Click
**Draw > Circle > Center, Radius**(or type**Circle**). - In the graphics area, click to define the:
- Center point of the Circle.
- Circle radius, or enter the radius at the command prompt.

To construct a Circle from its center point and diameter:

- Click
**Draw > Circle > Center, Diameter**. - In the graphics area, click to define the:
- Center point of the Circle.
- Circle diameter, or enter the diameter at the command prompt.

To construct a Circle from three points:

- Click
**Draw > Circle > 3 Points**(or type**Circle**then specify the**3Point**option). - In the graphics area, select three points that define points on the Circle.

To construct a Circle from two points along the diameter:

- Click
**Draw > Circle > 2 Points**(or type**Circle**then specify the**2Point**option). - In the graphics area, select two points that define the Circle diameter.

To construct a Circle from two tangent entities and the radius:

- Click
**Draw > Circle > Tangent, Tangent, Radius**(or type**Circle**then specify the**Ttr**option). - In the graphics area:
- Select a point on each of two linear entities that define lines tangent to the Circle.
- Click twice point to define the radius, or enter the radius at the command prompt.

To construct a Circle that is tangent to three lines:

- Click
**Draw > Circle > Tangent, Tangent, Tangent**(or type**Circle**then specify the**TTT**option). - In the graphics area, select a point on three linear entities that define lines tangent to the Circle.

This option is useful when inscribing the Circle within a regular polygon.

Access

Command: Circle

Menu: Draw > Circle