English: Wood triangles are cut easily. They make excellent supports when joining two perpendicular boards. They can be glued into the angle between the boards, or screwed or nailed. To cut them, adjust your miter saw to cut at a 45 degree angle. By flipping over a long board, you can make numerous triangles quickly. Make sure to fasten down the board with a guard for each cut, since angle cuts can draw the board in, causing the blade to jam and possibly causing injury. Remember to always keep hands out of the red prohibited zone when the blade is cutting. Source of picture: here (see public domain declaration at top of article). Questions: Write to my Wikipedia page or email me at thomaswrightsulcer@yahoo.com