Measure length and width of each area that has been plastered or needs to be plastered. Multiply length times width for each area, then add the results.
EXAMPLE:
how to calculate area of a wire
A=lw or a different formula depending on the object
Square feet measure area. The formula will depend on what you want to know the area of.
You get the largest area with a circle. Divide the perimeter by (2 x pi), then calculate the area with the formula pi x radius2.You get the largest area with a circle. Divide the perimeter by (2 x pi), then calculate the area with the formula pi x radius2.You get the largest area with a circle. Divide the perimeter by (2 x pi), then calculate the area with the formula pi x radius2.You get the largest area with a circle. Divide the perimeter by (2 x pi), then calculate the area with the formula pi x radius2.
the formula for area of a square is length times width
The formula for the area of the square is length multiplied by width.
Area in square units = base*height
To calculate the area of a circle use this formula: pi x r2.
The formula used to calculate the area of a circle is A r2, where A represents the area and r is the radius of the circle.
It depends on the shape whose surface area you are interested in.
Area = 1/2*base*perpendicular height
To calculate the area of a square, you multiply the length of one side by itself. The formula is: Area side length x side length.