What is one method to verify a cut line is square before cutting?

Using a straight edge is an effective method to verify that a cut line is square before making a cut. This technique involves aligning a straight edge against the cut line and ensuring that it is perpendicular to the edge of the material being cut. By placing a reliable straight edge along the cut line and checking the alignment with the edges of the material, you can visually confirm that the line is square. This method provides a clear line of sight and allows for easy adjustment if necessary, ensuring accuracy in your cutting process.

Other methods, while useful in certain scenarios, may not provide the same level of precision for verifying squareness. Making a rough cut first can introduce errors that may not be corrected later. Using a protractor is typically more suited for measuring angles rather than simply verifying a 90-degree angle, and measuring multiple times is an important practice but doesn’t directly verify the squareness of the cut line in a straightforward manner like the use of a straight edge does.