Arcs and Angles of a Trigonometric Circle

| View Cart ⇗ | Info

“In trigonometry, the arcs of circles are used to measure angles. All angles are supposed to have their vertexes at the center O of the circle, one side of the angle lying to the right of O, and coinciding with the horizontal diameter, as OB.”


International Correspondence Schools I.C.S. Reference Library Mathematics (Scranton: International Textbook Company, 1905) Geometry & Trigonometry Pg. 20


TIFF (full resolution)

2400×2352, 221.2 KiB

Large GIF

1024×1003, 30.2 KiB

Medium GIF

640×627, 18.2 KiB

Small GIF

320×313, 8.3 KiB