Answer:
D. pi
Step-by-step explanation:
Circumference of a circle = 
Diameter = d
Therefore, ratio of circumference of a circle to its diameter would be:

 => (d cancels d)
 => (d cancels d)
Therefore, the ratio of the circumference of a circle to its diameter is 
 
        
             
        
        
        
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5•3=15, 3.5•3=10.5....... the regular length of the length and width is :::::: LENGTH= 10.5 feet..... HEIGTH=15 feet