I hope you can understand my messy handwriting 
 
        
        
        
Answer:
The scale factor represents a proportional relationship between the scale drawing and the building’s dimensions. If the dimensions change, then the scale factor must also change to preserve the relationship.
Step-by-step explanation:
 
        
             
        
        
        
I think the correct answer is C. Since a=πr², in order to get the area to become 1/4 of what it was previously, the radius needs to be cut in half to make the divide that side by 4.  a=π(r/2)²=πr²/4 and will therefore multiply the area by 1/4.
        
             
        
        
        
Answer:
first one i am not sure about the other ones
Step-by-step explanation: