Robert,

Can you send us a diagram of the property? I am having trouble drawing it. I need to see what angles you are measuring. You can scan and email a drawing Quandaries and Queries or fax it to Math Central.

Thanks,
Harley

Robert sent back a diagram

I still have a problem with this lot. The angles at A and B that you have labeled as 140^o and 120o can't have those measurements. They are both less than 90^o. I thought maybe it was the external angles that have these measurements, the angles I have labeled in red. That would make the 4 internal angles

130^o at C
140^o at D
180^o - 140^o = 40^o at A
180^o - 120^o = 60^o at B

But the four internal angles must add to 360^o and 130^o + 140^o + 40^o + 60^o = 370^o. There is something wrong with the description you have of your lot.

Harley

Robert wrote back

I hope this is better

Perfect, but now you can find the area yourself. Go to our four-sided lot size tool, input the side lengths and the size of one of the angles and then click on the recalculate button.

If you need more assistance write back,
Harley