Question

three cubes of volume 27 cm cube is joint end to end to form a solid find the surface area of the cuboid so formed.

Answer 1

Hope this helps u :-)

Answer 2

given volume of cube is 27
therefore the side of cube is
a^3=27
a=3
now..
length of cuboid formed is 9 cm
breadth of cuboid formed is 3 cm
and heidht of cuboid formed is 3 cm
tsa of cuboid is 2(lb+bh+hl)
2(9*3+3*3+9*3)
2(27+27+9)
2(64)
therefore area of cuboid so formed is 128 cm sq
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hope it was helpful