2(lb+bh)
where l=length
b=breadth
h=height
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Let its dimensions be a, b and c:- Surface area of the cuboid: 2*(a*b)+2*(b*c)+2*(a*c) in square units
Curved surface area of a hemisphere means only the bent part of it , i.e,the part which looks like half of a sphere. Total surface area of a hemisphere is the circular top of a hemisphere + curved surface area of a hemisphere. So the formula goes like this: Curved surface area of hemisphere= 2πr2 Total surface area of hemisphere= 2πr2 + πr2 = 3πr2
First you need to know the size
the total surface area of a cuboid is : 2(lw+wh+hl) where l is length, w is width, and h is height.
The curved surface area is 75.4cm2