A triangle must have three closed sides, which means all of the lines are touching
See attached picture for the answer:
Answer:
it could be the mean median
A triangular prism Vol. = area (A) of the triangular base × height (h) of prism
A triangular pyramid V = A × 1/3 h
So since they have same base A and h, the V of the pyramid will be exactly 1/3 the V of the prism
