A point inside a square is positioned so that the distances to the four vertices are 27, 21, 6 and x units. If x is a whole number, what is the value of x?

x should be 18, if u need an explanation I can do one.

x=18

Could you post the method that you used to solve this, VooFIX ???

See the answer here: http://www.90thkilmacudscouts.com/maths/square_point1.html

Thanks, guest......that first proof is very intuitive [ with the correct set-up!!!]