Saturday

February 28, 2015

February 28, 2015

Posted by **jordan** on Monday, January 12, 2009 at 7:44pm.

- geometry -
**Damon**, Monday, January 12, 2009 at 9:04pmarea = pi r^2

169 pi = pi r^2

so

r^2 = 169

r = 13

then

we want circumference = 2 pi r

= 2 * 13 * r

= 26 r

**Answer this Question**

**Related Questions**

Algebra - The Circumference and area of a circle of radius r are givin by 2 [pie...

AP Calculus - The radius of a circle is decreasing at a constant rate of 0.1 ...

Math - The radius of a circle is decreasing at a constant rate of 0.1 ...

AP Calculus - The radius of a circle is decreasing at a constant rate of 0.1 ...

Geometry - I need help on a problem thats on formula for circumference. A circle...

Math - Which of the following formulas could be used to calculate the combined ...

geometry b - in a circle,a 90 dagree sector has an area of 36 pie ft squared....

Math - A mechanical engineering student wishes to inscribe a rectangle in a ...

Geometry - One can of pumpkin pie mix will make a pie of diameter 8 in. If two ...

math - Mrs.penn has a circular tablecloth with a circumference of 29 feet. Which...