The intersection of three altitudes of a triangle is
called the orthocenter, while altitude is the line drawn from one of the vertex
of a triangle and extends it in such a way that it cuts perpendicularly the opposite
side of the same triangle.
<span> For obtuse
triangle, the orthocenter always lies outside of the triangle. So option “C” is
correct. </span>
<span>An image of obtuse triangle along with orthocenter is
attached herewith.</span>
