A cow is tethered by a 50-meter rope to a rectangular barn. The dimensions of the barn are 60m * 30m . The rope is fastened to a hook on the barn that is 10 meters from the corner on the longest side of the barn. Over exactly how much ground can the cow graze? (Assume that the cow connol pars through the barn. He must graze outside only) Include a di gram, drawn to scale, on graph paper.​