Formalizing English usage is, IMHO, nothing like the formal rulesmaking process. It's more like an informal Saturday pick up game at the park, where that one kid who never got picked tries to explain the rules, as best he can make them out, to the bystanders. This is how Billy Packer got started. In fact, it's astonishing how many sports commentators have English degrees. ;)

With Dizzy Dean being the first of the lot.

-1, I'll accept the mark for "verbiage."
The line, however, is often two dimensional on a basketball court. Two inches is standard.

True of the painted line; 4-9-2 refers to the "edge" of the line, which is a line proper.

Anybody Need The Pythagorean Theorem ???
 

When did this change into the "Geometry Forum"?

The throw-in boundary line is the painted line. The restricted plane is the inbounds side of that painted boundary-line.

A Squared plus B squared equals C squared
 

Don't make me say it, Billy.

The rule says "Plane" not "Line", so the width of the line is irrelevant. The "Inbounds" plane of the line and "out of bounds" plane of the line are the exact same plane, where both meet.

The rule says both. :rolleyes:

Thats rignt, but "Boundary-Line" is refering to which plane.

Wow my head is spinning!!! I never really even thought about all this. If a thow in is being taken place and the thrower steps on the line I never called a violation. But since he stepped across the Out of Bounds line but not over the In bounds line.......where is he?

He stepped "on" the OOB line, not across it. He's still OOB.

Ok so the moral of the story is that the inbound side of the line no matter the width is what matters...

It refers to the painted line, recommended to be 2 inches but sometimes larger. Sometimes it's nonexistent, in which case the plane on the out of bounds side of the boundary line is co-located with the plane on the inbounds side of the boundary line.

Ok I understand... thanks