a pendulum length 12.3 inches swings 2 degrees and 57 minutes to each side of its vertical position. To the nearest hundredth of an inch, what is the lenght of the arc through which the end of the pendumlum swings?

Answer 1

radius, r = 12.3"

θ
=2*(2°57')
=2*(2+57/60)°*π/180 radians
=0.10297 radian

Arc length = rθ
=1.27"