Question

I need help finding the circumference, I have my notes, and all that, but Idk- I'm just slow when it comes to math, I just don't understand it, also my teacher isn't here we have a sub and I kinda forgot how to do it. (IT is NOT a test.) (Ss below)

Answer 1

I need help with 1, Please don't give the answer, I just don't understand how to set it up.

Answer 2

Would you rather have an example or the formula?

Answer 3

So, both alright, give me a second to put the formula down.

Answer 4

\[C=2\pi r\]
So an Example would be,
Say radius=8

As radius equals 8, you need to divide it by two because you need the half- radius, not the full thing. So, it turns into 4.
Because:
\[8\div2=4\]
&/or
\[8\times0.5=4\]
So, when trying to find the circumference, you:
\[C=2\pi r\]
Install the r, as r=4
\[C=2\pi (4)\]
Now, install that in a calculator;
\[C=2\pi(4)=25.1\]
Now, the question is solved!
\[C=25.1\]
𝙸 𝚑𝚘𝚙𝚎 𝚝𝚑𝚊𝚝 𝚝𝚑𝚒𝚜 𝚐𝚒𝚟𝚎𝚗 𝚒𝚗𝚏𝚘𝚛𝚖𝚊𝚝𝚒𝚘𝚗 𝚑𝚊𝚜 𝚑𝚎𝚕𝚙𝚎𝚍 𝚘𝚛 𝚊𝚒𝚍𝚎𝚍 𝚢𝚘𝚞𝚛 𝚔𝚗𝚘𝚠𝚕𝚎𝚍𝚐𝚎 𝚓𝚞𝚜𝚝 𝚊 𝚋𝚒𝚝;

𝙲𝚘𝚗𝚝𝚊𝚌𝚝 𝚖𝚎 𝚒𝚏 𝚢𝚘𝚞 𝚗𝚎𝚎𝚍 𝚊𝚗𝚢𝚝𝚑𝚒𝚗𝚐 𝚎𝚕𝚜𝚎...
@𝙸𝚖𝚊𝚐𝚒𝚗𝚎

Answer 5

Thank you, This Helps quite a bit.

Answer 6

@imagine radius is already half, it's if you have diameter, you want to cut it in half and find radius
So if you had a radius of 8, it would just be 8(pi)(2)

Answer 7

Yeah, I had forgotten the term for a full radius. Thanks Snow.