## gabbyalicorn one year ago posting screenshot right now...

1. gabbyalicorn

2. gabbyalicorn

@unknownunknown i rember we did a problem like this similiar so i think its A and B

3. anonymous

You're on the right path.. what do you think you should do next? :)

4. gabbyalicorn

umm i don't know... i know 6x4= 24

5. geerky42

$$C = \pi d$$ So diameter is 24, right?

6. geerky42

7. anonymous

The formulas for circumference are : π × diameter and 2 × radius × π

8. gabbyalicorn

-3- i kind got confused

9. gabbyalicorn

so is it just c

10. UsukiDoll

where did you get radius for 12? @geerky42

11. UsukiDoll

not that it's wrong... just how did you do it... I used the fact that 2pi is a 360 degree circle.

12. UsukiDoll

so 24pi means that you're going around a 360 degree circle 12 times. but how did grab the difference between the radius of 12 and the diameter of 12

13. geerky42

By using the fact that radius is half the diameter.

14. geerky42

I think you need to reread question.

15. gabbyalicorn

I... don't get it -_-

16. gabbyalicorn

so B

17. UsukiDoll

you outright said 12 Rainbow Dash .. show work man. T_T

18. gabbyalicorn

is it B and D?

19. geerky42

Anyway, You know that $$C = 24\pi$$ And since $$C$$ is just pi times diameter, we can see that diameter is 24. And since radius is half the diameter, radius is 12. So yes it's B and D.

20. gabbyalicorn

Okay, thank you so much :D √

21. UsukiDoll

Circumference of a circle is C = 2pi(r) .. ok I was doing it a bit different using degrees no wonder I couldn't get the terminology x(. k I see what happened x)

22. anonymous

I agree with @geerky42