Question

Two cubes of side 4 cm are fixed together. Find the total surface area of the new solid formed ​

Answer 1

Answer:

160 cm^2

Step-by-step explanation:

When two cubes of side 4 cm are fixed together, we get a cuboid with double the length of that of the cube, the same height and same width.

Dimensions of cuboid:

l = 8 cm   b = 4 cm    h = 4 cm

Total surface area of a cuboid is 2(lb + bh + lh)

= 2*(8*4 + 4*4 + 8*4)

= 2*(32 + 16 + 32)

= 2*80

= 160 cm^2