Final answer:
The try square is a woodworking tool set at a fixed 90-degree angle used for checking and marking right angles to create accurate joints, such as the mortise and tenon.
Step-by-step explanation:
Used mainly for woodworking, the try square is set at a fixed, 90-degree angle. This precise tool helps ensure that angles are square (at a 90-degree angle) which is critical for creating strong and accurate joints, such as the mortise and tenon. A mortise and tenon joint is one where a projecting point on one piece of wood (tenon) is inserted into a hole (mortise) in another piece. This type of joint is one of the strongest and has been used for thousands of years in woodworking projects to form a seamless and robust connection. Ensuring that each component of the joint fits perfectly at right angles is essential for the strength and integrity of the overall structure, making the try square an invaluable tool for woodworkers.