What is the height of the One World Trade Center?

Question

Ed was curious about the height of the One World Trade Center and decided to measure it indirectly while he was in New York City. He used a 2-meter model of the building that he found in a gift shop and measured the length of the shadow of the model to be 2.4 meters. Then he measured the length of the shadow of the One World Trade Center and found it to be 660
meters. What is the height of the One World Trade Center?

Answer 1

Assuming that the scale model is accurate and x is the actual height of One WTC, then

 

  2/2.4 = x/660

 

     2.4x = 1320

 

          x = 550 m