A chart for the conversion between degrees and radians, along with the signs of the major trigonometric functions in each quadrant.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Degree-Radian_Conversion.svg" title="File:Degree-Radian Conversion.svg">Degree-Radian_Conversion.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Comrade-yutyo" class="mw-redirect" title="User:Comrade-yutyo">Comrade-yutyo</a></li></ul>
2022-12-09
<ul><li><a href="//commons.wikimedia.org/wiki/File:Degree-Radian_Conversion.svg" title="File:Degree-Radian Conversion.svg">Degree-Radian_Conversion.svg</a></li></ul>