Question

17. Two cubes each of side 8 cm are placed together. Find the surface area of the cuboid the
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Answer 1

Answer:

Dimensions of resulting cuboid arelength = (8 + 8 ) cm = 16cm

breadth = 8 cm

height = 8 cm

so,

Surface area of cuboid = 2 (lb + bh + hl) = 2 (16*8 + 8*8 + 8*16) = 2 (128 + 64 + 128) 

= 2* 320= 640

Hence surface area of resulting cuboid is 640 cm2.