This image is a derivative work of the following images: File:TrigonometryTriangle.svg licensed with PD-self 2007-07-06T04:00:28Z TheOtherJesse 400x300...
a 30-60-90 triangle. Date 6 July 2007 Source Own work Author TheOtherJesse Other versions Derivative works of this file: TrigonometryTriangle-lv.svg...
