first correct gets brainliest

Answer
16cm
Step-by-step explanation:
C=2 times pi times r
r=2.5
diameter=5
answer=15.71
15.71 rounds up to 16
Answer:
16 cm
Step-by-step explanation:
C = 2πR
pie - 3.14
3.14*2.5^2
2.5^2= 6.25
6.25*3.14=15.70796
round up