www.mathopenref.comNAME:
Constructing the incenter of a triangle with compass and straightedge
(For assistance see www.mathopenref.com/constincenter.html)
1. Construct the incenter of the triangle below.
2. (a) Construct the incenter of both the triangles below.
    (b) Draw a line between the two incenters. What do you notice about the line? Explain why this is.