find the measure in degrees or radians of the central angle of a circle with radius 10 cm subbtended by an arc of 25 cm. Give both the exact answer and the approximate answer rounded to the nearest tenth.
-
S = rΘ
25 = 10Θ
Θ = 25/10 = 2.5radians
25 = 10Θ
Θ = 25/10 = 2.5radians