The Simple Trigonometry 2 Wall Chart is a comprehensive mathematics learning resource that explains the fundamental trigonometric ratios and reciprocal identities using a clear unit circle style diagram. Designed for classrooms, tutoring centres, and home study, this educational wall chart provides students with an easy-to-follow visual reference that reinforces essential trigonometry concepts required in secondary school mathematics.

The wall chart begins with a large coordinate plane and circle diagram illustrating the relationship between the radius (r), horizontal distance (x), vertical distance (y), and the angle (θ). The illustration clearly shows positive and negative angle rotation, helping learners understand how trigonometric functions relate to points on a coordinate plane. This visual approach makes it easier to connect geometry with trigonometric calculations.

The main reference table presents the six primary trigonometric functions, including sine (sin θ = y/r), cosine (cos θ = x/r), tangent (tan θ = y/x), cosecant (cosec θ = r/y), secant (sec θ = r/x), and cotangent (cot θ = x/y). Each formula is displayed in a structured layout, allowing students to quickly identify the correct relationship between the sides of a right triangle.

The chart also explains the reciprocal identities by showing that sin θ = 1/cosec θ, cos θ = 1/sec θ, and tan θ = 1/cot θ, together with their inverse reciprocal forms. Additional sections demonstrate how dividing sine by cosine produces tangent, and how dividing cosine by sine produces cotangent, reinforcing the connections between the different trigonometric functions.

This colourful poster serves as an excellent classroom display and revision aid, making complex trigonometric identities easier to remember. Teachers can use the wall chart during lessons, while students benefit from having a constant visual reference that supports homework, test preparation, and exam revision. Suitable for mathematics classrooms, high schools, colleges, tutoring centres, and independent study, this wall chart helps build confidence in foundational trigonometry through clear diagrams and concise mathematical formulas.