help pls im giving brainly
show your work too pls

Answer: radius is 3/8 and circumfrance is 3/4
Step-by-step explanation:
9/64pi=r^2pi
/pi /pi
9/64=r^2
root9/64 rootr^2
3/8=r
Circumfrance= r*2
circumfrance= 3/8*2
Circumrance= 3/4