How do I find the area of and irregular polygon?

[blizzard]

[SPLIT] How do I find the area of and irregular polygon?

Hello. How do I find the area of and irregular polygon? I'm trying to find the square footage of a roof.

 

[blizzard]

How do I find the area of an irregular polygon?

 

[fasteddie65]

Re: area of irregular polygon

One way is to subdivide it into triangles and find the area of each triangle. There are many formulas for triangle areas: A = (1/2)bh, sqrt[s(s - a)(s - b)(s - c)], etc.

 

[stapel]

How do I find the area of and irregular polygon?

The method(s) you use will vary with the tools at hand and the information available.