Question

three cubes each of side 6cm are joined end to end find the surface area of the resulting cuboid​

Answer 1

Step-by-step explanation:

When cubes are joined end to end it form a cuboid

Now length of cubide (l) = 6+6+6= 18 cm

breadth of cubood (b)= 6cm

hight of cuboid h = 6 cm

$Surface \: Area \: of \: cuboid = 2(lb + bh + hl) \\ \\ = 2[18 \times 6 \: + 6 \times 6 + 6 \times 18] \\ \\ = 2(108 + 36 + 108) \\ \\ = 2(252) \\ \\ = 504 \: \: {cm}^{2}$

Hope it helps u..