Question

plsss help me and tell me how to do it and the out come plsss

Answer 1

For the 1st one to find the circumference do: C=2*pi*r

Which would be C=2*pi*2 = 12.6cm

For the 2nd one to find circumference do:
C=pi*d

Which would be C=pi*10 = 31.4m

Hope this helps!

Answer 2

Use pi to answer it it helps i hope i helped