Solve the Problem $\mathrm { T } = \frac { \pi \sqrt { 3 } \ell } { 2 },$

Multiple Choice

Solve the problem.
-The formula for the period of a pendulum on the moon isn is T $\mathrm { T } = \frac { \pi \sqrt { 3 } \ell } { 2 },$ , wher whee T is the period in seconds, and L is its length in feet. Find the period of a pendulum whose length is 10 feet. (Round to the nearest hundredth.)

A) 2.74 sec
B) 8.60 sec
C) 4.97 sec
D) 2.72 sec