## 5.6 Maximum and Minimum in Real Life

#### Maximum and Minimum in Real Life

- In real life, many things can be maximised or minimised (e.g. cost, area, volume, profit, sales, etc.) for various purposes (e.g. in manufacturing, marketing etc.).
- Using differentiation and our knowledge in absolute maximum and minimum can help to solve these problems.

Example

**A farmer has sufficient fencing to make a rectangular pen of perimeter 200 metres. What dimensions will give an enclosure of maximum area?**