Ill. Word Problem 1. A rectangular field of fixed area is to be enclosed and divided into three lots by parallels to one of the sides. What should be the relative dimensions of the field to make the amount of fencing a minimum? 2. A light is placed on the ground 30 ft from a building. A man 6 ft tall walks from the light toward the building. At the rate of 5 ft per second. Find the rate at which the length of his shadow on the wall is changing, when he is 115 ft from the building