Question 197065
Inscribing  any  triangle  requires  finding  the  intersection  of  the  angle  bisectors of  the  triangle.  This  is  the  center  of  the  inscribed  circle,

To bisect  any  angle,  draw  any  arc  with  vertex  as  center, and  intersect  both  sides  of  angle.
From each  of  these  intersections  draw  an  equal  arc to  make  another  intersection.
Connect  this  second  intersection  with  the  vertex  for  the  angle  bisector.

For  the  triangle  do  this  for  each  angle  to  find  center  of  the  inscribed  circle.


For  the  ciircumscribed  circle on  a  triangle,  use  perpendicular  bisectors  of  each  side  to  
find  center  of  that  circle at  their  common  intersection.

Perpendicular  bisectors  are  found  by  drawing  common  arcs  from  each  end of  the side (vertices)
and  the  connecting  the  intersections  of  the  arc.