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).
How many feet by how many feet equals 1 acre? 43559.45382 ft = 1 acre. square root of 43559.45832 sq ft = 208.73 ft-The U.S. acre is actually an even 43,560 (66x660 or 1/8 mi. by 1/80th).