一个占地6公顷的长方形植物园，宽是200米，它的长是多少米？.L(m/H(R/}:u(H,s*Y6Q'@6f
算式：提示*L3u6s6d;U4v5e3{:e.L(m/H(R/}:u(H,s*Y6Q'@6f
答：它的长是7w.@.m4u'V-I*I,k9h*o米。.L(m/H(R/}:u(H,s*Y6Q'@6f