Acme Cattle Inc. owns the triangular piece of land which is bounded by the straight highway on one side. The straight canal on second side and straight railroad embankment on third side. Highway side is 4.5 miles long, canal side is 4.0 miles long while railroad side is 6.0 miles long. The acre of the land will support one cow for two weeks. Find maximum of cattle that this land support for 2 weeks.