Question

What is the surface area of 10 identical cubes of edges 2 cm fixed with each other horizontally

Answer 1

Answer:

According to the above figure

length, l = 20 cm

breadth, b = 2 cm

height, h = 2 cm

Since, the 10 cubes were placed horizontally fixed with each other.

Therefore, They together formed a cuboid.

So, Surface Area ( Cuboid ),

S = 2 × ( lb + bh + hl )

= 2 × ( 40 + 4 + 40 )

= 2 × 84

= 168 cm^2