Sunday

August 31, 2014

August 31, 2014

Posted by **briana** on Wednesday, September 12, 2012 at 6:59pm.

- math -
**Bosnian**, Wednesday, September 12, 2012 at 9:21pmC = 2 * r * pi

1 case :

18 * pi = 2 * r * pi Divide both sides by ( 2 * pi )

18 * pi / ( 2 * pi ) = 2 * r * pi / ( 2 * pi )

9 = r

r = 9 cm

2 case :

16 * pi = 2 * r * pi Divide both sides by ( 2 * pi )

16 * pi / ( 2 * pi ) = 2 * r * pi / ( 2 * pi )

8 = r

r = 8 cm

9 - 8 = 1 cm

**Related Questions**

Algebra - The circumference,y, of a circle varies directly with the diameter,x, ...

Math - The area of a rectangle is shown below The area of the rectangle is 56 ...

math - The area of circle c is 81 pi . if the radius of the circle is doubled, ...

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

triggg - Suppose a circle has a radius of 4.5 inches. If you double the radius ...

Math - 23.What is the approximate circumference of a circle with a radius of 6 ...

Math - Circle O is centered at the origin and has a radius of 5. Circle O' is ...

Geomatric series - A fractal is created: A circle is drawn with radius 8 cm. ...

Math - What is the approximate circumference of a circle with a radius of 6 ...

math - the radius of a circle when the numeric values of the circumference and ...