Question

3 cubes each of volumes 27 CM Cube are joined end end find the surface area of the resulting cuboid

Answer 1

It will be 27 *3
That is 81

Answer 2

Answer:

Volume of cube = 27

Volume of cube = a^3

then a^3 = 27

       a = ∛27

        a  = 3

so length of cuboid = 3

     breadth   =  3

     height =  3 * 3 =  9

hence The Surface area of cuboid = 2 ( lb + bh + hl )

                                                            =2(3*3 +3*9+ 9*3)

                                                             =2*63

                                                              =126       Answer