Question

Two cubes each of edge12cm are joined.The surface area of new cuboid ​

Answer 1

Answer:

Let A, b and h are respectively the length, breadth and height of the cuboid, then

I = (12+12) cm

=24 cm

when two cubes are joined we get a cuboid b 12 cm

and h = 12 cm.

Now,

The Surface Are of the resulting cub

= 2 (lb + bh + hl) cm2

= 2 (24 x 12 + 12 x 12 + 24 x 12 cm2

= 2 (288 + 144 + 288) cm2

= 2 (720) cm2

= 1440 cm2

Answer 2

Answer:

1,440 cm^2

Step-by-step explanation:

Length of the resulting cuboid

=(12+12)cm

=24cm

Breadth and height remaining the same i.e. 12 cm each

Surface area =2(lb+bh+lh)

=2(24×12+12×12+24×12)cm

2

=1440cm