Answer:
70.336 (if u meant 3.14 not 3.142)
Step-by-step explanation:
a = 2πr -------> the formula for circumference of a circle
a = 2 (3.14) r -------> do pi multiplied by 2
a = 6.28 (11.2) -------> plug in the radius
a = 70.336 -------> then multiply the radius and the 2 x pi answer
hope this helps!! :)