PLEASE HELP IF CORRECT BRAINLEST The coordinates of two of the vertices of square QRST are shown.

Q (4.6 , 2.1)
R (-5.4 , 2.1)

Part A
What is the length, in units, of each side of square QRST? Use the coordinates to show or explain how you determined the length.

Enter your answer and your explanation in the space below.

A student claims that vertex S of square QRST has only one possible location.

Is the student’s claim correct?

-If the student’s claim is correct, explain why there is only one possible location for vertex S and identify this location.

-If the student’s claim is incorrect , explain how you know and identify all possible locations for vertex S.

Enter your answer and your work or explanation in the space below.