Hi I think it is 83,023,007
To determine the lines that are parallel, you will need to find the missing angle length in the pairs of supplementary angles (totaling 180 degree).
180 - 114 = 66 degrees
180 - 112 = 68 degrees
Using these you can see the lines that are parallel. They have matching angle measurements.
c // f
d // e
150x100= 15,000 square meters
150x2= 300
100 + 300 = 400 meters of fencing