Find the areas of rectangles with the following pairs of monomials as their lengths and breadths respectively.
 (p, q); (10m, 5n); (20x2, 5y2); (4x, 3x2); (3mn, 4np)
Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
5a, 3a2, 7a4
Volume of a rectangular box = Length x Breadth x Height
Length = 5a, Breadth = 3a2 and Height = 7a4
∴ Volume = Length x Breadth x Height
             = 5a x 3a2 x 7a4
              = (5 x 3 x 7) x a x a2 x a4 = 105 x a7
            = 105a7Â
            Â
Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
2p, 4q, 8r
Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
xy, 2x2y, 2xy2
Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
a, 2b, 3c