A circle turns a radius of 9 cm Find the length a of the are

A circle turns a radius of 9 cm. Find the length a of the are intercepted by a current angle of 146 degree Do not round any intermediate computations, and round year answer to the neared lenth.

Solution

length of arc s =(/180^o)r

given =146^o, r =9cm

length of arc s =(146^o/180^o)*9

length of arc s =22.9cm