# CSG Irregular Polygon Area Calculator

This calculator requires the use of Javascript enabled and capable browsers. It is to determine the area of an irregular polygon. The generally accepted manner for finding the area of an irregular polygon is to break it up into triangles and possibly a rectangle, then calculate each and add the totals. Enter the length of the sides for each triangle you use; up to 10 of them. Triangles do NOT need to be right triangles. Enter the length and width of the side of the rectangle. You do not have to enter anything in any you do NOT use. All entries should be numeric. The answer is returned as a number, based on your entries. Enjoy!.

Other area calculators for your use are our Area Calculator, Ellipse Area Calculator, Parabola Area Calculator, Parallelogram Area Calculator, Pyramid Area Calculator, Trapezoid Area Calculator, our Surface Area Calculator and our Land Parcel Area Calculator. At least you are in the right area...

## Irregular Triangle 1

Formula - s = (a + b + c) / 2 or 1/2 of the perimeter of the triangle
Formula - A = SquareRoot(s * (s - a) * (s - b) * (s - c))
Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 2

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 3

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 4

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 5

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 6

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 7

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 8

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 9

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Irregular Triangle 10

Enter the length of side one
Enter the length of side two
Enter the length of side three
square units

## Rectangle

Formula - A = L x W
Enter the length
Enter the width
square units

## Total Irregular Polygon Area

Formula - TA = AT1 + AT2 + AT3 + AT4 + AT5 + AT6 + AT7 + AT8 + AT9 + AT10 + AR
Triangle 1 Area square units
Triangle 2 Area square units
Triangle 3 Area square units
Triangle 4 Area square units
Triangle 5 Area square units
Triangle 6 Area square units
Triangle 7 Area square units
Triangle 8 Area square units
Triangle 9 Area square units
Triangle 10 Area square units
Rectangle Area square units
Total Irregular Polygon Area square units
Version 2.9.1