Answer: idk how to explain but I learned about tectonic plates and from this picture the boundaries are sliding past each other
Step-by-step explan
The answer to this is C.54 units² .
Area=1/2 base*height
base=12
height=9
12*9=108
108/2=54
Area=54
Alright, lets get started.
Mr. Hinckley owns 83 acres of total land.
He divides the land into eight equal sections to sell to eight buyers.
It means, we could find the land each buyer receives by dividing total land by 8.
So, each buyer receives land = 
So, each buyer receives land = 10.375 acres
So, the answer is 10.375 acres lands received by each buyer. : Answer
Hope it will help :)