Answer:
22
Step-by-step explanation:
400/18=22.222222222
Round to 22
 
        
             
        
        
        
Answer:
7.071 cm
Step-by-step explanation:
 
        
             
        
        
        
31/3 werbfwougfhwufiwqifhwbjfjijbhwef
 
        
                    
             
        
        
        
....I am not sure if this is an answerable question XD
        
                    
             
        
        
        
The first person who calculated pi was <span>Archimedes got really close however with the mathematics he had in his time he did not have decimal points nor could he use the number 0. So it has to latter once people recognize 0 as a number and the decimal point that we get what we have today. </span><span />