Considering that the diagonal divided the area of the rectangle in two equal parts, Dan is not correct, as both will have to cut the same amount of grass.
What is the area of a rectangle?
It is the number of square units inside of the rectangle, and for a rectangle of length l and width w it is given by:
A = lw.
The diagonal divides the area of the triangle exactly in the middle, hence Dan is not correct, as both will have to cut the same amount of grass.
More can be learned about the area of a rectangle at https://brainly.com/question/10489198