Calc Area of an Irregular Decagon

[mwin002]

Hi Everyone

Anyone able to help solve or show me how to solve the area of a concaved irregular decagon


Kind Regards
Mat

 

[tkhunny]

You are in the "Geometry / Trigonometry" section. Typically, one would cut it up into manageable triangles and other nice shapes. Let's see your early attempts.

 

[Deleted member 4993]

Hi Everyone

Anyone able to help solve or show me how to solve the area of a concaved irregular decagon
View attachment 8654

Kind Regards
Mat

The area CANNOT be calculated from only side lengths.

 

[tkhunny]

The area CANNOT be calculated from only side lengths.

Well, that's true enough, but if we know just a little more, we could do it. Thus my question. Perhaps the OP is not sharing all there is.

OP: Side length alone does not constitute a rigid structure for an irregular decagon. (Like it would for any triangle.) If you knew something about angles or coordinates of vertices (that you are not sharing) we might be able to get somewhere.

Of course, also, without showing YOUR work, it will be difficult for us to proceed. That's how we work around here.