Primary Trigonometric Ratios
Sine, cosine, tangent; finding sides and angles in right triangles.
Overview Primary Trigonometric Ratios — Grade 10 Right-Triangle Trigonometry Unit Overview
In this Grade 10 Canadian mathematics unit, learners use sine, cosine, and tangent to describe and solve relationships in right triangles. By the end of the unit, they can choose the correct trig ratio, find missing side lengths and acute angles, and connect right-triangle geometry to proportional reasoning, similarity, and measurement.