### Home > A2C > Chapter 14 > Lesson 14.9.1.2 > Problem 9-28

9-28.

An open box is constructed as shown at right. The sides of the box are made out of sheet metal costing *x* and *h*, will it cost to construct the box?

1. Find the surface area.

2. Sum up the cost of each part.

Surface Area

Cost of Construction