Find the Length of a Pendulum That Makes a Swing $\pi$

Multiple Choice

Find the length of a pendulum that makes a swing in 6 s. The equation for the time of one swing of a pendulum is where T is the time in seconds and L is the length in feet. Use 3.14 for $\pi$ . Round your answer to the nearest hundredth.

A) 44.37 ft
B) 30.57 ft
C) 116.84 ft
D) 29.21 ft
E) 4.87 ft