@sheetmetalsamurai: Stop Guessing Angles — Use This Simple Tangent Trick Most people think you need a protractor or fancy tools to mark angles… but you don’t. In this video, I show how to mark a perfect 30° line using nothing but basic math and a tape measure. All you need to know is: Take the tangent of your angle, multiply it by your length (or height), and that gives you your offset. Make your marks, connect the points… and you’ve got a perfect angle. This works for ANY degree — not just 30°. If you work with layout, fabrication, or carpentry, this is a game changer. #math #construction #trigonometry #metalfabrication #welding