Answer:
h = 15 feet
Step-by-step explanation:
Create a proportion using height/shadow. The left side of the proportion is going to be your height/shadow. The right side of the proportion is the buliding's height/shadow. To solve, cross multiply then divide.
[tex]\frac{5}{4} = \frac{h}{12} \\4h = 60\\4h/4 = 60/4\\h = 15[/tex]
