A rectangular field is to be fenced with 120 m of wire and is to be divided into two…
MATHEMATICS · Single correct · AP · Calculus AB · Analytical Applications of Differentiation · Analytical Applications of Differentiation
Problem
A rectangular field is to be fenced with 120 m of wire and is to be divided into two equal smaller rectangles by an additional fence running parallel to its length. If the dividing fence is parallel to the length, what should be the length of the field for the total enclosed area to be maximum?
(a) 30m
(b) 15m
(c) 20m
(d) 25m