The formula entirely depends on the shape of the outline being considered.
A few examples include:
-- Circle . . . Area = (pi) (Radius)2
-- Square . . . Area = (length of one side)2
-- Rectangle . . . Area = (length) x (width)
-- Triangle . . . Area = 1/2 (length of the base) x (height)
Other shapes have different formulas.
460
If you mean a circle then its square footage formula is: pi*radius2
Treat it as a square and half the result.
One thing that can be calculated using a Square Footage Calculator is the Length and Width of a Rectangle, Circle, Square or Triangle. This comes in handy for calculating room sizes.
length x width = area (sq. foot)
The formula for calculating square footage is a=S2 (a = area and s = side) Example, to calculate the square footage of a room that is 15 feet wide and 12 long, you would multiply 15 x 12, which will give you the square footage.
460
Take your square footage and divide by 9.
If you mean a circle then its square footage formula is: pi*radius2
Treat it as a square and half the result.
One thing that can be calculated using a Square Footage Calculator is the Length and Width of a Rectangle, Circle, Square or Triangle. This comes in handy for calculating room sizes.
Area in square feet = pi*radius2
length x width = area (sq. foot)
You need to use an integral. And the formula for an integral will vary depending on the shape of your non square area.
length x width = area
To calculate square footage of a pipe you need to use the area formula of a circle, a=1/2bh. then find the circumference of the entire pipe.
That depends on why you need the square footage. For building permits, tax assessments, etc. it is the outside; for floor covering of course the inside...