HL AI – Trigonometry

Right angled triangles

Radians

Non Right Angled

Trig Graphs

Trig Review

3d Shapes

Modelling

Traffic Light Coding for Unit

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Learning Outcomes
Trigonometric ratios in a right angled triangle. SOHCAHTOA.
Sine, cosine rules in non-right angled triangles; ambiguous case of the sine rule.
Area of a triangle ½absinC.
Using SOHCAHTOA with 3d shapes, including pyramids, cones, spheres, and combinations of these.
Using trigonometry in problem solving (Pythagoras’, elevation and depression).
Radian and degree measure conversion.
Using radian measure, length of an arc and area of a sector.
Unit circle and Pythagorean identities, sin2x+cos2x=1, tanx=sinx/cosx.
Circular functions and their periodic nature.
Trig graphs and the transformation of trig graphs.
Real life trigonometric graphs and modelling.