Respuesta :
Answer: 39.9797217047
Step-by-step explanation:
2πr = 251.2
πr = 125.6
r = 39.9797217047
So to find the radius by using the circumference you can do it multiple ways but I’ll show you this way. 251.2/3.14=80 this is the diameter. Now to find the radius you’ll divide the diameter by 2 80/2 which is 40mm. 40mm is the approximate length of the tuna can cap opener.