Use the given information to find the length of a circular a

Use the given information to find the length of a circular arc. Round to two decimal places.

the arc of a circle of radius 11 inches subtended by the central angle of pie/4

Answer is in inches(in)

Solution

radius = r = 11 inch

Theta = pi/4 = 0.785 rad

Then arc = S = r*theta = 11*0.785 = 8.64 inches