Question

Five cubes, each of edge 3 cm are joined end to end. What is the total surface area of the resulting cuboid, in cm ?

Answer 1

Answer:

Total surface area of the resulting cuboid is 198 cm^2

Answer 2

The surface area of resulting cuboid is 126 sq. cm.

Step-by-step explanation:

Since we have given that

Side of each cube = 3 cm

Number of cubes = 5

So, Length of cubes become = 15 cm

Breadth = 3 cm

Height  = 3 cm

So, Surface area of resulting cuboid becomes

$2(lb+bh+lh)\\\\=2(15\times 3+3\times 3+3\times 3)\\\\=2(45+9+9)\\\\=2\times 63\\\\=126\ cm^2$

Hence, the surface area of resulting cuboid is 126 sq. cm.