### Home > INT2 > Chapter 11 > Lesson 11.2.1 > Problem 11-45

THE TRANSAMERICA BUILDING

The TransAmerica building in San Francisco is built of concrete and is a square-based pyramid. The building is periodically power-washed using one gallon of cleaning solution for every

If an edge of the square base is

Use the Pythagorean Theorem to find the height of each triangular face.

The surface area of the building (not including the base) is ^{^2}.