i dont understand this at all, please dont give me an answer i just need someone to explain it to me if so, thank you <3​

i dont understand this at all please dont give me an answer i just need someone to explain it to me if so thank you lt3 class=

Respuesta :

Answer: Multiply the diameter by Pi, which in school lessons usually just use 3.14

Step-by-step explanation:

So 3.14 multiplied by the diameter of 9.

please mark brainliest