How do you square a structure?I know I can gauge from corner to corner,but what's the other route? ...

Has anyone ever reglazed their tub?
Answers:    you can use the old 3-4-5 rule. start at a corner and determine out 3' and mark. estimate out the other way 4' and engrave. then if it is square you would know how to measure diagonally and it be 5' across
Can you product furniture out of wicker?
By using a framing sqaure