Keywords: RechtwKugeldreieck-3.svg A right-angled spherical triangle RechtwKugeldreieck svg 2008-07-13 22 32 UTC derivative work Pbroks13 talk RechtwKugeldreieck svg Traced by User Stannered from a PNG by en User Rt66lt Changes requested at the en Wikipedia Graphic Lab Pbroks13 RechtwKugeldreieck svg original upload log This image is a derivative work of the following images Image RechtwKugeldreieck svg licensed with PD-user-w 2007-04-24T18 21 41Z Stannered 356x358 9767 Bytes <nowiki> a right-angled spherical triangle en Image RechtwKugeldreieck png 2007-04-24 Traced by User Stannered from a PNG by en User Rt66lt PD original other</nowiki> Uploaded with derivativeFX Spherical trigonometry |