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
Jim G.
Apr 20, 2018

#"length "~~26.18" m to 2 dec. places"#

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"#

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