The best answer between the two choices would be the second option B) FALSE because the owner doesn't have to use his ''best'' judgement to figure out costs and expenses when it comes to sales.
Let's draw the diagonals of the square. The square is being divided by 4 right triangles. & these right triangles are also isosceles (the diagonals of a square intercepts each other in the middle).
The area of each right triangle = (6 x 6) / 2 = 18 yard² & the 4 right triangles => 4x 18 = 72 yd²