This pyramid is strangely drawn, but 3D objects are hard to convey on a 2D surface sometimes. The shaded triangle represents the floor of the pyramid. This triangle has a base of 5 inches and height 6 inches.
area = base*height/2 = 5*6/2 = 30/2 = 15
The floor area is 15 square inches.
This is the value of the uppercase B in the formula V = (1/3)*B*h
The h is the height of the pyramid which is the 8 inch segment (not to be confused with the 6 inch segment)
<span>my answer would be this below </span><span>if at least two of the three lines are parallel, the three lines will not form a triangle.</span><span> </span>