Christopher is building a 1:150 colon, 150 scale model of a railroad building. his model has a rectangular base that is 1.5 wide and 2 feet long. what is the area of the base of the actual railroad building in square feet?

The model has a rectangular base; W (model) = 1.5 ft, L (model) = 2 ft.

If the scale is 1 : 150, then the length and the width of the actual railroad building are 150 times larger.

W = 1.5 * 150 = 225 ft

L = 2 * 150 = 300 ft.

Area: A = L * W = 300 * 225 = 67,500 ft²

Answer: the area of the base of the actual railroad building is 67,500 ft².