Question

two cubes of side6cm each joined end to end . Find the surface area of the resltant cuboid.

Answer 1

cube side = a = 6cm
if two cubes are joined end to end then the dimensions of the resultant
cuboid are
length = l = 12cm
breadth = b = 6cm
height = h = 6cm
total surface area of the cuboid = 2(lb+bh+lh)

= 2(12*6+6*6+12*6)
= 2(72+36+72)
= 2*180
=360 square cm