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Asked by Sahilrao

Nov 29, 2014

Write all the formulas in Surface areas and volumes.

Write all the formulas in Surface areas and volumes.

Answers(2)

Answer

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
        •  lateral surface area = 2h (l + b)
        •  total surface area of the cuboid = 2(lb + bh + lh)
        •  volume = lbh

If 'a' is the length of the edge of a cube, then
        •  lateral surface area of the cube = 4a2
        •  total surface area of the cube = 6a2
        •  volume = a3
                                                  
Curved surface area of a cylinder (CSA) = 2πrh.

Total surface area of a cylinder (TSA) = 2πrh + 2πr2 = 2πr(h + r).

Volume of a cylinder (V) = πr2h.

Base area of the cone = πr2

Curved surface area of the cone = πrl

Total surface area of the cone = πrl + πr2 = πr(l + r)

Volume of the cone = 1 3 πr2h

Surface area of a sphere (A) = 4πr2

Volume of a sphere (V) = 4 3 πr3
 
Surface area of a hemisphere = 2πr2

Total surface area of a hemisphere = 3πr2
 
Volume of a hemisphere = 2 3 πr3
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