Question

a stick 2 meters long long casts a shadow 0.5 meters long at the same time washinton monument casts a shadow 42.25 meters long. how tall is the washington monument?

Answer 1

This is a proportion problem. We simply write\[\frac{ 0.5 }{ 2 }=\frac{ 42.25 }{ X }\]
and solve for X.