IGCSE Topic Guide
IGCSE Trigonometry: Expert Help with Sin, Cos, Tan and Applications
Trigonometry is a key IGCSE Maths topic that many students find challenging. I break down trigonometric concepts into clear, logical steps — from basic ratios in right-angled triangles to the sine and cosine rules for non-right-angled problems.
IGCSE Trigonometry Topics Covered
I cover SOHCAHTOA for right-angled triangles, the sine and cosine rules, area of a triangle using ½ab sin C, bearings problems, angles of elevation and depression, and 3D trigonometry. Each topic is taught with visual diagrams and progressive exam questions.
Building Confidence with Trigonometry
Many students struggle with trigonometry because they lack a clear method for deciding which formula to use. I teach a systematic decision framework: identify the triangle type, list known values, then select the appropriate rule. With regular practice, this becomes automatic and exam confidence grows.
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