## anonymous one year ago PLEASE HELP WILL AWARD FAN AND MEDAL!!!!!! circle a as an area of 254.469 square units. What is the circumference of circle a ? Round your answer to the nearest hundredth, if necessary. A. 9.00 units B. 15.95 units C. 56.55 units D. 81.00 units

1. anonymous

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2. anonymous

and so that is the opposite of $\pi \times R ^ 2$

3. anonymous

yes and i would plug in 254.469 for area correct?

4. anonymous

yes

5. anonymous

but not for circumference.

6. anonymous

well wouldnt you solve for the radius then plug it in to the formula to find circumference

7. anonymous

and $\pi = 3.1415926535898$

8. anonymous

yes

9. anonymous

yes the formula for the circumference of a circle is R x $\pi \times 2$

10. anonymous

okay so then i solve for r then plug that in and find the circumference?

11. anonymous

yes, that is right

12. anonymous

plus i am only in grade 3

13. anonymous

yeah

14. anonymous

can you medal and fan now?

15. anonymous

medal you and fan

16. anonymous

is c correct?

17. anonymous

thank you soo much :)