find the area?

Question

given a square which has a length of n. Co-ordinates of the square are (0,0), (n,0),(n,n),(0,n) . You need to draw 4 straight lines:

Line from (0,1) to (n,n-1)
Line from (1,0) to (n-1,n)
Line from (0,n-1) to (n,1)
Line from (1,n) to (n-1,0)
These four lines will intersect in a point (x,y) like the figure shown below.

Calculate the total area of A+B+C+D (except the four corner unit square).

Answer 1

Hello This section is not give assignment. Here you can only programming related problems. Please check this Guidelines.

https://www.sololearn.com/discuss/1316935/?ref=app