Four cubes each of side 5 cm are joined end to end . The surface are a of the resulting solid is
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4 cubes placed side by side
=> There are 18 exposed sides
1 side = Length x Length
1 side = 5 x 5 = 25 cm²
1 side = 25 cm²
18 sides = 25 x 18 = 450 cm²
Answer: Surface area = 450 cm²
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