Get Room Dimensions from ANY Room Using Dynamo

I recently got a question from a student in my Dynamo Dojo course about getting room dimensions using Dynamo. He's working on some test fits and wants to automatically display the room length and width in the room tag. This is pretty straightforward to do using bounding boxes. However, things quickly fall off the rails when you have irregularly shaped or rotated rooms. You can get incorrect dimensions as the bounding boxes orient to the view rather than the room geometry. Not good! But I looked around and found a couple of little-used, out-of-the-box nodes that solved that problem for me nicely and easily. I ended up with an elegant solution that works for almost any room. How did I do it? Keep watching to find out as I take you step-by-step through my solution.