Question 761977
a) Area = 40cm^2  Height = 4cm
  Volume = base area * height
                = 40 * 4
               = 160cm^3
b) 10cm * 12cm * 4cm = 480cm^3

c)Area of top = 25cm^2 Depth = 6cm
 Volume = top area * depth
        =   25cm^2 * 6cm
        =    150cm^3
Hope this helps.
:-)