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).
Acre Formula: 1 Acre = 43560 square feet. Acre Definition. The Acre Calculator will instantly calculate the acreage of any plot of land if you just enter in the width of the land in feet and the length of the land in feet.