http://wiki.answers.com/Q/What_is_the_mathematical_formula_for_calculating_a_surface_area_for_a_building"
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To calculate the surface area of a truncated pyramid, you first take the surface area of each side. That would be the base time the straight height. If it is a 4 side pyramid with equivelant sides, multiply that answer by 4.
A "formula" is some mathematical rule for calculating something you wish to know. So "the formula of the rectangle-base pyramid" will be some expression which tells you something that you want to know about it. Beyond that there is no way anyone can tell you, since you do not say what feature of the pyramid you are thinking about (height, volume, surface area, weight...).
A = 2 x pi x r (r + h)
the formula for calculating the surface area of an oval is A = Pi * a * b where a & b are the semimajor(half the long) and semiminor(half the short) axes
Formula for calculating the area of sphere is : 4 * pi * r * r
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The formula for calculating the electric flux () through a closed surface is EdA, where E is the electric field and dA is a differential area element on the surface.
The answer will depend on what information you have.
The formula for calculating the surface charge density of a sphere is: Q / 4r, where represents the surface charge density, Q is the total charge on the sphere, and r is the radius of the sphere.
To calculate the surface area of a truncated pyramid, you first take the surface area of each side. That would be the base time the straight height. If it is a 4 side pyramid with equivelant sides, multiply that answer by 4.
area of dish end
(2/3)*base*height
6(pi)l2, where l = length of side
The formula for calculating the surface area of a prism is SA 2B Ph, where B is the area of the base, P is the perimeter of the base, and h is the height of the prism. The angle of the prism does not directly affect the surface area calculation.
A "formula" is some mathematical rule for calculating something you wish to know. So "the formula of the rectangle-base pyramid" will be some expression which tells you something that you want to know about it. Beyond that there is no way anyone can tell you, since you do not say what feature of the pyramid you are thinking about (height, volume, surface area, weight...).
It depends on how many sides are part of the "opening".