Answer:
31.4 feet or 957.072 centimetre-square 
Explanation:
We can convert the feet to centimetre or work with it that way 
Formula for circumference 
C=2TTr^2
C=2*3.14*5
C=31.4 feet 
Convert to centimetres 
Each feet equal 30.48cm
31.4 feet will be 
31.4*30.48= 957.072 cm^2