The rest of the Universe?
perimeter
Its "incenter" will not fall outside the triangle, or outside the base of the triangle.
It doesn't ever fall outside of a triangle.
A bigger triangle.
The Hull
A point outside the triangle may.
The orthocenter of a triangle is found at the intersection of the three altitudes of the triangle. Obtuse triangles contain altitudes which are found outside of the triangle, meaning their orthocenter must be outside of the triangle as well.
Every point in the plane outside the triangle can fall there!
It will, if the triangle is obtuse.
When the triangle is obtuse.
The region outside of Pluto is known as "The Kuiper Belt
A Triangle's OrthocenterNo, it can be outside the triangle.