Three cubes each of side 14 cm are joined together by their sides
to form a cuboid. Find the surface area of the resulting cuboid.
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Answer: 2744cm²
Step-by-step explanation: Surface area of a cuboid = 2(lb+bh+hl)
l= 14cm*3
= 42cm
b= 14cm
h= 14cm
= 2(42cm*14cm+14cm*14cm+14cm*42cm)
= 2* (588cm²+ 196cm²+588cm²)
= 2* 1372cm²
= 2744cm²
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