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

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CSG Irregular Polygon Area Calculator

Irregular Triangle 1

Irregular Triangle 2

Irregular Triangle 3

Irregular Triangle 4

Irregular Triangle 5

Irregular Triangle 6

Irregular Triangle 7

Irregular Triangle 8

Irregular Triangle 9

Irregular Triangle 10

Rectangle

Total Irregular Polygon Area