



 
Hi Rob, I labeled the corners of your lot from $A$ to $E,$ added two points $F$ and $G,$ and two lines perpendicular to $AB.$ I printed your page and measured the lengths $EA$ and $AB$ in millimeters and got $EA = 73$ mm and $AB = 81$ mm. I used both of these to calculate a scale and found that \[\frac{99}{73} = 1.36 \mbox{ and } \frac{109}{8} = 1.36\] and hence I am convinced that the scale in the horizontal and vertical direction is 1.36 feet to 1 mm. I then measured $FB$ to be 46 mm so my estimate of the distance from $B$ to $F$ on your lot is $1.36 \times 46 = 61.9$ feet. I then measured $FC$ to be 66 mm so the distance from $F$ to $C$ on your lot is $1.36 \times 66 = 89.76$ feet. Thus the area of triangle $FBC$ is \[\frac{89.76}{2} \times 61.9 = 2778.072 \mbox{ square feet.}\] Similarly I measured $GE$ to be 10 mm so the distance from $G$ to $E$ is $1.36 \times 10 = 13.6$ feet. And again $EG$ measures 73 mm so the distance from $A$ to $G$ is 98.28 feet. I then assumes that the angle $AEG$ is a right angel (it looks close) so the area of triangle $AGE$ is \[\frac{98.28}{2} \times 13.6 = 675.104 \mbox{ square feet.}\] The distance from $F$ to $A$ is $109  61.9 = 47.1$ feet and hence the trapezoid $AFCG$ has area \[\frac{89.76 + 98.28}{2} \times 47.1 = 4428.5775 \mbox{ square feet.}\] The sum of the areas of the triangles $FBC, ADE$ and the trapezoid $AFCG$ is 7882 square feet. This is approximately the area of your lot. It leaves out the triangle $GCD$ but I think that is quite small. This is the best I can do with the information I have. I hope it helps, 



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