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Trigonometric Ratios

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Question 65

In triangle ABCABCABC, side AB AB\,AB has length 15cm, side AC AC\,AC has length 12cm and ∠BAC=60∘\angle BAC = 60^\circ∠BAC=60∘

a.

Verify that the length of side BC BC\,BC is 13.7 cm, correct to 3 significant figures.

[3]
b.

Verify that the area of triangle ABC ABC\,ABC is 77.9 cm2^22, correct to 3 significant figures.

[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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