a hall is 15 meters long and 15 meters wide . if the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls , what is the volume of the hall ( in cubic meters ) ?
n0 = 15.0
n1 = 15.0
t0 = n0 * n1  # area of rectangle
t1 = 2 * (n0 + n1)  # perimetere of rectangle
t2 = t0 * 2.0
t3 = t2 / t1
answer = n0 * n1 * t3
print(answer)