Scale Factor = 1 : 12
It means, for every 12 centimeters, it is 1 centimeter in the model
The depth of Tower in model = 32 cm
In real, It would be: 32 * 12 = 384 cm
We know, 1 m = 100 cm
So, 384 cm = 384/100 = 3.84 m
In short, Your Answer would be: 3.84 meter
Hope this helps!