Surface Area and Volume of Cuboids
Category : 8th Class
A cuboid is a closed rectangular solid which has six rectangular faces.
Length of the cuboid = AB = CD = EF = GH. (Equal length)
Width of the cuboid = AD = BC = EH = FG. (Equal width)
Height of the cuboid = AE = BF = CG = DH.
Diagonal of the cuboid \[~=\text{A}{{\text{B}}^{\text{2}}}+\text{B}{{\text{C}}^{\text{2}}}+\text{B}{{\text{F}}^{\text{2}}}\]
Diagonal of a Cuboid \[=\sqrt{(Lengt{{h}^{2}}+Breadt{{h}^{2}}+Heigh{{t}^{2}})}\]
\[=\sqrt{{{l}^{2}}+{{b}^{2}}+{{h}^{2}}}\]
Lateral surface area of cuboid \[=2h(l+b)\]
Total surface area of cuboid \[=2(lb+bh+hl)\]
Volume of the cuboid \[=l\times \text{b}\times \text{h}\]
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