disclaimer: Without the angles it might not even be possible, but given the laws of triangles once the lengths of all sides are given the angles should be calculable alright here's the problem find total area for all three triangles (2 isosceles 1 scalene) that is all

For the ones w/ sides of equal lengths, just multiply longside*shortside = Area (since they can be divided down the middle into 2 right triangles). For the other one use the law of cosines: Laws of Cosines & Sines

no it's not a penis thing or anything I just bought a small house in a Cull De Sac and the lot size wasn't listed. The front yard is tiny but it has a nice backyard. The lot is roughly trapezoidal. I was able to get on google earth and break the lot into three measured triangles, and if I can calculate the sum area I'll know the lot size. It's a cute Bungelow with wood floors and an attic, detached garage etc. Great starter home in a great neighborhood. The finacee and I are going to update it and either sell it after the recession, once the economy revocers, or make it a rental for the growing retirment community in oregon. I'll include a picture I used to be able to calculate the area of any polygon, but that was a long time ago and I've since purged it from my memory because "nobody uses that shit in reallife anyways" (yeah I know) so if there's an egg head in the house please tell me the fucking sum area of these three triangles Kthnx

1362.497706420088 + 2935.9487286906083+ 259.96922894835074 = 4558.41566405904704 here is the site I used Technology Center of DuPage - Triangle Area Calculator

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No, I recall something that you may... Well, I guess did not, say earlier. Correction made to my extensive Hondaswap notes: