Draw a picture: the diagonal of a square has length 3 radical 3 find the length of a side

x = √13.5 or 3.67 to the nearest hundredth.

Step-by-step explanation:

A square has equal sides so let each side be x units long.

By the Pythagoras theorem:

(3√3)^2 = x^2 + x^2  

27 = 2x^2

x^2 = 13.5

x = √13.5

the answer is 0.071

good luck! : d