math advanced functions
posted by ashley .
a) Determine the measure of the central angle that is formed by an arc length of 5 cm in a circle with a radius of 2.5cm. Express the measure in both radians and degrees, correct to one decimal place.
b) Determine the arc length of a circle in part a) if the central angle is 200o.

angle=5/2.5=2 radians= 2*180/PI degrees