Correct option is (C) 448 cm2
Surface area of cuboid \(=2\,(lb+bh+hl)\)
\(=2\,(10\times8+8\times8+8\times10)\)
\(=2\,(80+64+80)\)
\(=2\times224=448\,cm^2\)
Correct option is (D) 16
Let \(l,b\;and\;h\) are length, breadth and height of the original cuboid.
After increasing each dimension of cuboid by 4 times,
length of formed cuboid \(=4\,l,\)
breadth of formed cuboid = 4b and
height of formed...