Question

Two cube each of volume 27cm^2 are join end to end from a solid . Find the surface area of cuboid

Answer 1

Side of cube is 3 cm

Surface area of cuboid is

2h (l+b)

2×3(6+3)

6×9

54cm²

Answer 2

HERE'S YOUR ANSWER....

$volume \: of \: cube = 27 {cm}^{2} \\ = > {l}^{3} = 27 \\ = > l = \sqrt[3]{27} \\ = > l = 3cm$
NOW,

DIMENSIONS OF CUBOID,
l=3+3=6cm
b=3cm
h=3cm

$tsa \: of \: cuboid = 2(lb + bh + hl) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2(6 \times 3 + 3 \times 3 + 3 \times 6) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2(18 + 9 + 18) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times 45 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 90 {cm}^{2}$
#HOPE IT HELPS..... ♥