![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=610ebec11d57a215b0e06df7f3294c9f.png\")
million miles.The earth circumference of a circle with the radius is million miles.
Find the distance the earth travels in one day in its path arround the sun.
\Circumference is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=24ea3d1e676ce4902af55ead9e52b447.png\")
.
Substitute ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b48620868d5ab1389f1ff1e77e965df7.png\")
in ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=24ea3d1e676ce4902af55ead9e52b447.png\")
. ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7cba5a9592a542646c499e5e44b04754.png\")
The earth travel ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=49273d11b4098f56c8e14a1fb20bf47b.png\")
of this distance in a day
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=43afb3b96f65de0794247dd8ceb107db.png\")
The earth travels ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4221571365459b334c31313cceb2869e.png\")
million miles/day.