MR. WESTBERG HAS JUST PURCHASED A FARM. HE WANTS TO FENCE IN A CORNFIELD WITH SIDES THAT MEASURE 452 FT., 189 FT., 5210 FT., AND 205 FT. HOW MANY 80-ROD ROLLS OF WIRE DOES HE NEED TO PURCHASE TO PUT UP A FOUR STRAND FENCE? 1 ROD = 16 ½ FT.