mathematics?
You MUST offer mathematical proof to sustain your answer to this question:Stake a goat out anywhere on the perimiter of a field that is 100 ft. in diameter. ( area of field = 7857.143 sq.ft. )What will be the length of his tether to allow him to eat exactly half of the grass in the area of the field. ( 3928.571 sq.ft. )It's not 50 ft.
