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in Surface Areas And Volumes by (40.1k points)
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Can we say that the total surface area of cuboid = lateral surface area + 2 × area of base. 

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Total surface area of a cuboid = L.S.A + 2 × Area of base 

= 2h (l + b) + 2 × lb 

= 2lh + 2bh + 2lb 

= 2(lb + bh + lh) 

We can conclude that total surface area of a cuboid = L.S.A + 2 × Area of base

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