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Trigonometric Ratios

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Question 20

In triangle ABCABCABC, AB=16 cmAB = 16 \text{ cm}AB=16 cm and angle B=60∘B = 60^\circB=60∘

a.

Given AC=15 cmAC = 15 \text{ cm}AC=15 cm, find the two possible values for angle CCC, correct to 1 decimal place.

[4]
b.

Given instead that the area of the triangle is 783 cm278\sqrt{3} \text{ cm}^2783​ cm2, find BCBCBC.

[2]
Markscheme

Trigonometric Ratios Questions

  1. A Level
  2. /Maths
  3. /Trigonometric Ratios

217 exam-style questions on Edexcel A Level Maths Trigonometric Ratios, covering 9.1 The Cosine Rule, 9.2 The Sine Rule, 9.3 Areas of Triangles, 9.4 Solving Triangle Problems, 9.5 Graphs of Sine, Cosine and Tangent, and 9.6 Transforming Trigonometric Graphs. Each one has a worked solution and a mark scheme showing where the marks go.

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