Ruler:A plastic protractor is a tool used in geometry to measure angles. It is typically made of clear or colored plastic and has a flat base with a semicircular or circular shape. The base is marked with degrees, usually in increments of 1 or 5, and has a center point that is used to measure angles. The protractor is commonly used in schools and by students to complete geometry assignments and tests.
A ruler, also known as a straightedge, is a flat and straight tool used to measure length or distance. It is typically made of plastic or metal and has markings in inches, centimeters, or both. The ruler is commonly used in schools and by students to measure the length of lines, shapes, and objects. It can also be used to draw straight lines and to create accurate angles when used in conjunction with a protractor.

Wooden ruler, Plastic Ruler ,school ruler ,office ruler ,teacher ruler ,flexible ruler

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