A building that is 180 feet tall casts an 120ft shadow. How long is the shadow of a 6ft man?

Question

geometry.. help ASAP

Answer 1

The shadows of perpendicular objects form triangles that are proportional to each other. Thus,

 

180 ft tall / 120 ft shadow = 6 ft tall / x ft shadow

 

upon rearrangement,

 

x = 6*120/180 = 4 ft shadow