From the diagram the radius of the circle is 14 cm;
The circumference of a circle formula is .
(Substitute 3.14 for and 18 for r)
(Multiply: )
The circumference of the circle is 113 in.
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(Substitute 3.14 for ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=de67c267749620b1dc5db0fc4922e505.png\")
and 18 for r)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=553df0f014231761446b4a2b510dae39.png\")
(Multiply: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ecd7911f7e269b6e37066255d0dd8be.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")