The volume of the pyramid is 40.
Explanation
The volume of the pyramid is determined by its base area and the height.
Given that
The base of the pyramid given in the problem is a rectangle
length of the base= 5 cm
breadth of the base=4 cm
base area A= length*breadth(area of rectangle)
=4*5=20
height of the pyramid h=6 cm
volume of the pyramid=1/3 Ah
=1/3 *20*6=40