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Nov 29, 2014

# Write all the formulas in Surface areas and volumes.

Write all the formulas in Surface areas and volumes.

NextGurukul Guest User

Member since Apr 1, 2017

l*b*h

Raghunath Reddy

Member since Apr 11, 2014

Sol: If l, b and h are length, breadth and height of a cuboid, then         â€¢  lateral surface area = 2h (l + b)         â€¢  total surface area of the cuboid = 2(lb + bh + lh)         â€¢  volume = lbh If 'a' is the length of the edge of a cube, then         â€¢  lateral surface area of the cube = 4a2         â€¢  total surface area of the cube = 6a2         â€¢  volume = a3                                                    Curved surface area of a cylinder (CSA) = 2Ï€rh. Total surface area of a cylinder (TSA) = 2Ï€rh + 2Ï€r2 = 2Ï€r(h + r). Volume of a cylinder (V) = Ï€r2h. Base area of the cone = Ï€r2 Curved surface area of the cone = Ï€rl Total surface area of the cone = Ï€rl + Ï€r2 = Ï€r(l + r) Volume of the cone = $\frac{\text{1}}{\text{3}}$Ï€r2h Surface area of a sphere (A) = 4Ï€r2 Volume of a sphere (V) = $\frac{\text{4}}{\text{3}}$ Ï€r3   Surface area of a hemisphere = 2Ï€r2 Total surface area of a hemisphere = 3Ï€r2   Volume of a hemisphere = $\frac{\text{2}}{\text{3}}$Ï€r3
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