How do you find arc length of an arc that subtends a central angle of 60 degrees in a circle with radius 25m?
1 Answer
Apr 20, 2018
Explanation:
#"the length of an arc given it subtends a known angle at"#
#"the centre is"#
#"arc length (l) "="circumference "xx"fraction of circle"#
#rArrl=2pirxx60/360#
#color(white)(l)=2pixx25xx1/6=(25pi)/3~~26.18" m"#