Ruler(ரூலர்)-15cm

A ruler is a straight, flat tool used for measuring and drawing straight lines. Typically made from materials such as plastic, wood, or metal, rulers have measurement markings along their edges, usually in centimeters and inches. Available in various lengths, such as 15 cm, 30 cm, or 12 inches, rulers are essential tools in classrooms, offices, and workshops. They often include additional features like transparent bodies for better visibility of the underlying work or a hole for easy storage.