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Trigonometric Ratios in Right-Angled Triangles

9th Grade · Math · Australian Curriculum

7 lessons

Goal

Recognise the constancy of the sine, cosine and tangent ratios for a given angle in right-angled triangles using properties of similarity.

7 lessons
0 of 7 done
  1. Understanding Sine as a RatioUp next
  2. Understanding Cosine as a RatioYou are here
  3. Understanding Tangent as a RatioNot started yet
  4. Proving Constancy of Trig Ratios Using SimilarityNot started yet
  5. Finding Exact Values of Trigonometric RatiosNot started yet
  6. Using Trigonometric Tables and a CalculatorNot started yet
  7. Applying Constancy of Trig Ratios to Solve ProblemsNot started yet
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Learning standards covered

auAC9M9SP01Australian Curriculum (v9) · Math · 9th Grade

recognise the constancy of the sine, cosine and tangent ratios for a given angle in right-angled triangles using properties of similarity

Open Global Standard:OGM.10.TRG.1
GlobalOGM.10.TRG.1