Answer:
12.56 if it asks to use 3.14, 4[tex]\pi[/tex] if it does not ask to use 3.14
Step-by-step explanation:
If it asks to use 3.14
C=[tex]\pi d[/tex]
substitute [tex]\pi[/tex] with 3.14 and d with 4.
C=3.14*4
C=12.56
If it does not ask to use 3.14 your answer is 4[tex]\pi[/tex]
C=[tex]\pi d[/tex]
C=[tex]\pi 4[/tex]
C=4[tex]\pi[/tex]
