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Trigonometric Ratios

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Question 33

A triangle with a horizontal base labelled 7 cm, sloping sides labelled 5 cm and 8 cm, and a 60° angle at the top vertex.

Calculate the area of the triangle giving your answer correct to 3 significant figures.

a.

Write down the value of sin⁡60∘\sin 60^\circsin60∘.

[1]
b.

Hence calculate the area.

[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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