Incenter
Consider what happens with the position of the incenter when the triangle
is right, obtuse, or equilateral.
Location for right triangles:
When the triangle is right, the incenter is inside the triangle.
Location for obtuse triangles:
When the triangle is obtuse, the point that is equidistant from the
sides is inside the triangle.
Location for equilateral triangles:
When the triangle is equilateral, the incenter is located at the same
position as the centroid, circumcenter, and incenter.
The location of the incenter will always be inside the triangle.
Click Here to use a GSP
script for the construction of the incenter.
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