A building casts a shadow that is 348 meters long At the same time a person who is 2 meters tall casts a shadow that is 6 meters long How tall is the building?

Using Similar Triangles or RatiOS.

348:6 :: x:2

Form a fractional equation.

348/6 = x/2

X = 2(348)/6

x = 348/3

x = 116 m

NB THe colons (:) are mathematical shorthand for 'as to'. Used in ratiOS.