Drawing an arc, tangent to two lines

The steps used to drawn an arc tangent to two lines  is illustrated in figure 11.

Figure 11. illustrates the method of drawing an arc tangent to two lines.

 

Drawing an arc, tangent to a  line and an arc

Figure 12 shows the steps in drawing an arc tangent to a line and an arc that  (a) that do not intersect  and  (b) that intersect each other.

 

Figure 12 Drawing an arc tangent to a line and an arc