This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
DegreeRadian Conversion it.svg en chart for the conversion between degrees and radians along with the signs of the major trigonometric functions in each quadrant DegreeRadianConversion svg UTC DegreeRadianConversion svg Inductiveload derivative work talk Italian nouns DegreeRadianConversion svg Own work by uploader User Inductiveload