Three diagonals can be drawn in a hexagon mmyyy dude.
Their approximate heating expense would be $1,920. Hope this helps!
The answer is 42 ft 4 in
The perimeter of a rectangle with length l and width w is:
P = 2l + 2w
l = 12 ft 3 in
w = 8 ft 11 in
1 ft = 12 in
l = 12 * 12 in + 3 in = 144 in + 3 in = 147 in
w = 8 * 12 in + 11 in = 96 in + 11 in = 107 in
P = 2 * 147 + 2 * 107 = 294 + 214 = 508 in
P = 508 in = 504 in + 4 in = 42 * 12 in + 4 in = 42 ft 4 in