Which item is allowed in constructing a geometric figure?

In constructing a geometric figure, a straightedge or ruler is typically allowed for drawing straight lines, while a compass is used for creating arcs and circles. These tools enable precise constructions based on geometric principles. Other items, such as pencils and erasers, are also commonly used for drafting and refining the figure. However, measurements and calculations using a protractor or measuring tools are generally not permitted in classical geometric constructions.