Question

When two cube of side 12 cm are joined end to end to form a cuboid then the total surface area of cuboid is

Answer 1

total surface area of one cube of side 12 = 6(12^2) = 864

when joined , two faces will not be seen

total surface area = 2(864) - 2(12^2) = 1440

Answer 2

-3cm*4cm*scm