# G.4.7.3 Tallest Tower

- Author:
- Katie Akesson

The tallest building in the world is the Burj Khalifa in Dubai (as of April 2019). If you’re standing on the bridge 250 meters from the bottom of the building, you have to look up at a 73 degree angle to see the top. How tall is the building? Give the equation you used to find your answer.

The tallest masonry building in the world is City Hall in Philadelphia (as of April 2019). If you’re standing on the street 1,300 feet from the bottom of the building, you have to look up at a 23 degree angle to see the top. How tall is the building? Give the equation you used to find your answer.