What is the area of a square if it has 4in on every side

16

Step-by-step explanation:

The lenght of the swing is 1.20 meters  

Step-by-step explanation:

Hi, we have to apply the pendulum formula:

t = 2π√(L/g)

Where:

t = time (seconds)

L= Length ( meters)

g= gravity = 9.8 m/s2

Replacing with the values given:

2.2 = 2π√(L/9.8)

Solving for L

2.2/2π =√(L/9.8)

0.35 =√(L/9.8)

0.35² = L/9,8

0.122 x 9.8 = L

The lenght of the swing is 1.20 meters  

Feel free to ask for more if needed or if you did not understand something.