Two cubes of volume 125 cm 3 are joined end to end to form a cuboid. The surface area of the resulting cuboid is

Answers (1)

Assume the side of cube = a cm

Volume of the cube (a3)= 125 cm3   => a = 5 cm

Length of the cuboid (L)= 10 cm

Breadth of the cuboid (B) = 5 cm

Height of the cuboid (H) = 5 cm

The surface area of the resulting cuboid = 2 (LxH + BxH + LxB)

                                                                 = 2(10x5 + 5x5 + 10x5)

                                                                 = 250 cm2

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