- CUBOIDLet length = l, breadth = b and height = h units. Then
- Volume = (l x b x h) cubic units.
- Surface area = 2(lb + bh + lh) sq. units.
- Diagonal = l2 + b2 + h2 units.
- CUBELet each edge of a cube be of length a. Then,
- Volume = a3 cubic units.
- Surface area = 6a2 sq. units.
- Diagonal = 3a units.
- CYLINDERLet radius of base = r and Height (or length) = h. Then,
- Volume = (
r2h) cubic units.
- Curved surface area = (2
rh) sq. units.
- Total surface area = 2
r(h + r) sq. units.
- CONELet radius of base = r and Height = h. Then,
- Slant height, l = h2 + r2 units.
- Volume =
r2h
cubic units.
- Curved surface area = (
rl) sq. units.
- Total surface area = (
rl +
r2) sq. units.
- SPHERELet the radius of the sphere be r. Then,
- Volume =
r3
cubic units.
- Surface area = (4
r2) sq. units.
- HEMISPHERELet the radius of a hemisphere be r. Then,
- Volume =
r3
cubic units.
- Curved surface area = (2
r2) sq. units.
- Total surface area = (3
r2) sq. units.
Note: 1 litre = 1000 cm3.
Volume and Surface Area - Important Formulas |Aptitude
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