![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
If ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e7c781231a59c1b36c9f5db5a034b92b.png\")
(in radians) is a central angle in a circle with radius ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cc9bb0729dc9c8bf32a7cdd2a48bca93.png\")
, then the length of the arc cut off by is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=440c7fcc7b461c66422da11a72a4f56b.png\")
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Find arc length.
\Radius ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b351e4eed53a7582e2ece3fc2a7c89c3.png\")
cm.
The tip of the minute hand travel in 20 minutes :
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2deddd0a609e534e37b7aaef898e0b7f.png\")
Consider .
Substitute the values of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f8cde61131d90c4b9a25008525df8c86.png\")
and cm in above formula.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d06f4178521cc5de52d3fd54c5b69f96.png\")
Thus, the length of the arc is 5.03 cm.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The length of the arc is 5.03 cm.