Question

find the circumference of circle whose diameter are 12.8​

Answer 1

$2\pi \: r \: = 12.8 \\ 2 \times 22 \div 7 \times r = 12.8$

r = 8.14

I am not sure that the answer is correct...

Answer 2

D= 12.8
R= d/2 = 12.8/2 = 6.4
Circumference of circle= 2*π*r
= 2*3.14*6.4
= 6.28*6.4
= 40.192
HEY YOUR ANSWER IS 40.192
PLZ MARK ME AS BRAINLIEST!!!!!