A closed rectangular box is to be made with a volume of 0.9 m. In addition,1. the box must have a square base;2. the area

A closed rectangular box is to be made with a volume of 0.9 m³. In addition,1. the box must have a square base;2. the area of the base must not exceed 1.8 m²;3. the height of the box must not exceed 0.75 m.Determine the dimensions of the box that would generate:a. a minimal surface area;b. a maximal surface area.