Fill in the blank:

Originates ____ of the triangle at a ____It connects the vertex to the line containing the opposite side at a _____ angle The altitude is _____contained within the triangle In a right triangle, the altitude can be the ____of the triangle. In an obtuse triangle, the altitude can extend ____ the triangle.

Originates (at the) base of the triangle at a right angle. It connects the vertex to the line containing the opposite side at a perpendicular angle. The altitude is always contained within the triangle. In a right triangle, the altitude can be the height of the triangle. In an obtuse triangle, the altitude can extend outside the triangle.