Beta-lactam antibiotics The are a broad class of antibiotics that includes the penicillins and the cephalosporins. Ceftriaxone (Rocephin), a cephalosporin, is sometimes given intravenously to patients with Lyme disease.
If one acre is a square (two-dimensional figure with four straight sides, whose four interior angles are right angles and whose four sides are of equal length), each side is 208.7103 linear feet (square root of 43,560). The perimeter would be 834.8413 linear feet (208.7103*4).
There are 43,560 square feet in an acre. This is equal to 1/640 of a square mile, or approximately 80 percent of the area of an American football field, including the end zones.