Write the phrase "z divided by 2" as a numerical or algebraic expression.

This is about circle theorems. someone asap : (

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Rounded to the nearest tenth, what is the value of x