Drawing tangent arcs

You can construct an arc by sequentially positioning the beginning and end points of the arc, as well as the radius of the arc and the angle between the two radii connecting the center with the beginning and the end points of the arc, respectively. The beginning point (the point of tangency) of a tangent arc must lie on an already drawn line or curve, so that the arc can be tangent to it.

Control points

A tangent arc has four control points: the beginning and end points, the center point of the circle the arc belongs to, and a point that lies in the middle of the circumferential length of the arc. While you are drawing an arc by CBE, the following pointers appear:

About to draw the starting (tangent) point of the arc.

About to draw the end point of the arc.

NOTE: The contextual edit bars, attributes and tabular pane presentation, as well as the procedures for modifying and repositioning of an arc are the same for all arc-drawing modes except for arc by BEH.

To draw a tangent arc

Do any of the following:

On the Objects toolbar, click Tangent Arc .
On the Objects menu, point to Arcs, and then click Tangent Arc.
Press CTRL+D+A+T.

In the graphical area, click to draw the first point of the arc: point to the line or curve to which you want the arc tangent, and then click.
To finish the arc, do any of the following:

Snap the would-be end point of the arc.
Point to where you want the end point to be, and then click.
In the contextual edit bar, in Radius and Angle, enter values, press ENTER, and then in the graphical area, click anywhere.

NOTE: If you start drawing a tangent arc at a crossing point of two or more objects, to switch the would-be arc tangency between the objects, before you draw the end point, press CTRL.