### Home > PC3 > Chapter 1 > Lesson 1.1.5 > Problem 1-45

1-45.

In problem 1-40, suppose that the box has a closed top. How would the solution to the problem change? Write new equations or explain what changes you would make to your method for solving the problem. You do not need to solve the problem.

The surface area would change and include the area of the top.