## anonymous one year ago PLZ HELP WILL MEDAL AND FAN What is the exact diameter of an area rug with a circumference of thirty-six feet? eighteen pi feet eighteen divided by pi feet thirty-six divided by pi feet thirty-six pi feet

1. marihelenh

$C=(\pi)d$

2. marihelenh

It is also equal to $C=(\pi)r ^{2}$ So, if you put 36 in for the circumference, you get $36=(\pi)r ^{2}$

3. anonymous

thank you

4. marihelenh

From there you can square root both sides and get your answer.

5. marihelenh

Oh my goodness wait.

6. anonymous

mari you're wrong C=pi*d is the circumference while pi*r^2 is the area

7. marihelenh

I did that incorrectly. I realized what I did @RicardoDelfin So, @joannacaro123 the other equation is $C=(\pi)2r$

8. anonymous

so I multiply

9. marihelenh

You could put back 36 in for C. From there you would divide and get what r is equal to.

10. anonymous

so my answer is $\frac{ 36 }{ }$

11. anonymous

|dw:1437411368979:dw|

12. marihelenh

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