In the case of two parallelograms that have the same base and height, but one is rectangular whereas the other has two angles sharply acute and the opposite two very obtuse accordingly, intuitively the latter figure can easily appear greater than the former, for intuitively its given longer side is taken to be the determinant one and, as in Cavalieri's figurative method, the planes are compared according to the aggregate of parallel lines intersecting them; the longer side could be seen as offering the possibility of more lines than the vertical side of the rectangle does.