Support geometry and Algebra 2 students with this Trigonometric Ratios Poster for learning basic trig ratios, right triangle relationships, and important trigonometric identities. This printable math reference poster gives students a clear visual guide to sin, cos, tan, cosec, sec, and cot, along with reciprocal identities, quotient identities, Pythagorean identities, and key trigonometry results. It works well as a classroom display, student reference sheet, math notebook insert, or quick rev