Formula for calculating the area of a hemisphere...
Area = (4 x pi x r2) / 2
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The formula for the surface area of a sphere.
If you mean 4*pi*r^2 then it is the formula for finding the surface area of a sphere
semi means half A semi-circle is half a circle The formula for the area of a circle is A = (Π * r^2) Area of semi circle = (Π * r^2) ÷ 2
The surface area of a 12-inch diameter sphere is 452.39 square inches.The formula for surface area of a sphere is 4*pi*r2 where r=radius
You get a hemisphere.