Three cubes of sides 5 cm each are fixed together. Find the total surface area of new solid
formed
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Answer:
a³=5cm
then by using the formula
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Three cubes are fixed together, forming a cuboid.
New length = 5+5+5 = 15cm
breadth = 5cm
height = 5cm
TSA of new surface (cuboid) = 2(lb+bh+lh)
= 2×(15×5+5×5+15×5)
= 2×(75+25+75)
= 2×175 = 350 cm²
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