The assumption on which the trapezoidal formula for volumes is based, is

Q. The assumption on which the trapezoidal formula for volumes is based, is

A.            The volume of the Prismoidal is over-estimated and hence a Prismoidal correction is applied

B.            The end sections are parallel planes

C.            The mid-area of a pyramid is half the average area of the ends

D.            All the above

Answer: All the above