Answer:
ΔHJK; Lines are drawn from each point to the opposite side to form right angles and the lines intersect at point G
Explanation:
The orthocenter is the point of intersection of altitudes. Each altitude is orthogonal to the corresponding base, so the use of "ortho-" can help you remember.
The appropriate choice is ...
ΔHJK shown: Lines are drawn from each point to the opposite side to form right angles and the lines intersect at point G.