Which of the following instruments is used for constructing angles and bisecting lines? Ruler Protractor C Set square

The correct answer is C) Set square.<br /><br />A set square is a triangular tool used for constructing angles and bisecting lines. It typically consists of a right-angled triangle with a straight edge along one side. By placing the set square on a piece of paper and aligning it with a given line, angles can be constructed and lines can be bisected accurately.