The answer to your problem is 2
The answer is 4 hope u get it
The area of your figure equals to about 67
Check the picture below
anyhow, notice the part of the river is not included in the perimeter of 797 meters, because, the river is doing the fencing per se
we have the lines
x-3=6
x=6+3
x=9
this is a vertical line (parallel to the y-axis)
The slope is undefined
and
y=3x+4
The slope is m=3
Compare their slopes
1) Their slopes are not equal -----> are not parallel lines
2) Their slopes are not negative reciprocal -----> are not perpendicular lines
therefore
<h2>The answer is neither</h2>