Question

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4. Two cubes each of volume 64 cm are joined end to end together. Find the surface area
of the resulting cuboid.​

Answer 1

Answer:

When we join two cubes of 64cm than Length will become 64+64 =128cm of cuboid whereas breadth and height remains same.

So Total Surface Area - 2(lb+bh+lh)

2(128×64+64×64+128×64)cm^2

2(8192+4096+8192)cm^2

2(20490)cm^2

40980 cm^2