A training ring for horses is an oval formed from a rectangle with two semicircles on either end. Rounded to the nearest foot, how many feet of fencing is required to surround the entire ring with a fence?
Let L and W represent the dimensions of the rectangle, and the semi-circles fit on the sides of length W.
Straight length = 2L
Curved length = 2πW/2 = πW
Total perimeter = 2L + πW