best circle type in AutoCAD

1.   Circle

Command Alias	Short cut key	Classic Menu	Ribbon /Application Menu
Circle	C	Draw => Circle	Home => Circle

·       Drawing a circle in AutoCAD is rather simple. The default for drawing a circle is to specify a center point and a radius. You can also choose to create a circle based on a diameter, circumference, or area.

·       The following options are displayed;

·       Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: Specify a point or enter an option.

2.    Center Point

·       Draws a circle based on a center point and a diameter or a radius.

3.    Radius

·       Defines  the radius of the circle. For this, you are required to enter a value, or specify a point.

4.    Diameter 

·       Defines the  diameter of the circle. Enter a value, specify a second point.

5.     3P (Three Points)

·        Draws a circle based on three points on the circumference.

6.     Tan, Tan, Tan

·        Creates a circle tangent to three  objects.

7.     2P (Two Points)

·        Draws a circle based on two endpoint of the diameter.

8. TTR (Tangent, Tangent, Radius)

·        Draws  a circle with a specified radius tangent to two objects.

·        Sometimes more then one circle matches the specified criteria. The  program draws the circle of the specified radius whose tangent points are closest to the selected points.