please help me i really really need help please please help me please i really really need help please

Please Help Me I Really Really Need Help Please Please Help Me Please I Really Really Need Help Please class=

Answer :

Answer:

7.11

Step-by-step explanation:

c=square root / 3.1^2 +6.4^2

c=square root/9.61 + 40.96

c=square root 50.57

c=7.11