3 4 5 rule 238508-3 4 5 rule
The 543 rule — which was created when Ethernet, 10Base5, and 10Base2 were the only types of Ethernet network available — only applies to sharedaccess Ethernet backbones A switched Ethernet network should be exempt from the 543 rule because each switch has a buffer to temporarily store data and all nodes can access a switched Ethernet The 345 Rule This is sometimes referred to in woodworking as the 345 rule While you can always use the 345 Rule to determine square on any scale when you're laying out a project, there is a more precise (and much faster) way to determine whether your nearlycompleted assembly is squareIn one direction measure 3 inches of feet and in the other direction of what you would expect to be 90 degree measure 4 then diagonally between those two point should measure 5 if this is so then your walls are 90 degrees to each other The 3 To 5 Rule 3 4 5 rule
