The diameter of the circle is . \ \
(Substitute 5 for d) \ \
(Divide each side by 2) \ \
(Cancel common terms) \ \
(Divide: )
The radius of the circle is 2.5 cm. \ \
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dc724efa7a7d4d9ed850d468480e9585.png\")
. \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8cac00153e315baea3373b12c9c16381.png\")
(Substitute 5 for d) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=936c2ab26ba48413bd5fe03b5c050b00.png\")
(Divide each side by 2) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b110ce9d1ecc390ab163a59c2d2bb54e.png\")
(Cancel common terms) \ \
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2775dcd88df953f33e7c5ec1bb4a7fdb.png\")
(Divide: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c7bc94df6e386b0e22b04c403521f825.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")