Trig help

 

   Find the length of an arc that subtends a central angle of 45° in a circle of radius 30 m.     

   (Round your answer to two decimal places.)     

 

   All the way around the circle is 60 • π = 60 • 3.1416 = 188.496     

   All the way around the circle is 360^o, thus 45^o is 1/8 of the way     

   The length of the arc is 1/8 • 188.496 which rounds to 23.56 m     

   _.