Angle Small 320×162 Medium 640×325 Large 1024×519 Download Tiff Original 2400×1217 | (102.0 KB) Description Illustration that can be used to show the definition of an angle - an opening between two lines that intersect or meet. Keywords acute, angle definition, angles, intersecting lines, line Galleries Miscellaneous Angles Source: International Correspondence Schools I.C.S. Reference Library Mathematics (Scranton: International Textbook Company, 1905) Geometry & Trigonometry Pg. 2