This is a protractor, it helps us measure angles (in degrees): Have a look at this animation (press the play button) to see how to make a neat...

Choose a picture as the background, the background can be zoom in or out, as well as moved, and our protractor can measure directly on the picture. You can drag and drop a picture into the background.

Interactive digital protractor featuring 180° and 360° modes, printable PDF versions, step-by-step tutorials, and educational content. Perfect for students, teachers, engineers, and geometry learning.

Free online protractor tool, no download required, supports web and mobile use. Easily measure any angle, suitable for students, teachers, designers and other users.

A protractor is a simple measuring instrument that is used to measure angles. A common protractor is in the shape of a semicircle with an inner and outer scale with markings from 0° to 180° on it.

Use our free online protractor to measure angles on images, objects, and screens with precision. Fast, transparent, and easy to use.

Use our free Protractor Online Ruler to measure angles directly on your screen. Perfect for students, teachers, and designers.

Easily measure angles using an interactive whiteboard angle simulator. Online protractor for angle problems with acute, obtuse, and reflex angles. Explore complementary, supplementary, and angles …

When using a protractor, notice that the outside set of numbers goes from 0 to 180 degrees where the 0 is on the left side of the protractor while the inner set goes from 180 to 0 degrees where 0 is on the …

A protractor is a semicircular geometry tool divided into 180 equal parts, each measuring 1°. It is used for drawing angles of known measures and finding angles of unknown measures and is usually made …