Question

Two cubes, each of volume 512cm^3 are joined end to end. find the surface area of the resulting cuboid ?​

Answer 1

Volume of cube = l

3

l

3

=512 ⇒l=8

Hence side is 8 cm

when we join two cubes, we will get a cuboid whose length is 16cm , h=8 , b=8

Total surface area of cuboid = 2(lh+bh+lb) = 2(128+128+64) =2(230)= 640cm

2

Lateral surface area of cuboid = 2h(l+b) = 24x8 (16+8) = 384cm

2

Answer 2

Answer:

I'm giving you thnxxx.. ❤