Two cubes, each of volume 512 cm3 are joined endto end. Find the surfa

1.	Two cubes, each of volume 512 cm3 are joined endto end. Find the surface area of the resulting cuboid.
Answer» Since its a cube , V = s^3root 512 = 8side is 8 cmwhen you join two cubes , you will get a cuboid whose length is 16 cm , h= 8 , b=8 Total s.area of cuboid = 2(lh+bh+lb) = 2( 128+128+64)= 640 cm sq Lateral surface area = 2h(l+b)2*8 (16+8)= 324cm sq,

Two cubes, each of volume 512 cm3 are joined endto end. Find the surface area of the resulting cuboid.

Answer»

Since its a cube , V = s^3root 512 = 8side is 8 cmwhen you join two cubes , you will get a cuboid whose length is 16 cm , h= 8 , b=8

Total s.area of cuboid = 2(lh+bh+lb)

= 2( 128+128+64)= 640 cm sq

Lateral surface area = 2h(l+b)2*8 (16+8)= 324cm sq,