The arc command allows users to draw circle segments with a range of specificity.

Arc

• By default, the arc command requires 3 points.
  • 1st Point → Center of arc
  • 2nd Point → Beginning of arc
  • 3rd Point → End of arc

• The subcommand tangent will make an arc segment which fits two existing curves using tangency.

• Technically there are 2 arcs which are tanget to both curves.

• and

See extensive documentation of arcs here.