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Trigonometric Ratios

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Question 116

A parallelogram ABCD ABCD\,ABCD has area 55 cm2. Given AB AB\,AB has length 5 cm, BC BC\,BC has length 12 cm and angle ABC ABC\,ABC is obtuse.

a.

Verify that the size of angle ABC ABC\,ABC is 113.56∘ 113.56^\circ\,113.56∘ to 2 decimal places.

[3]
b.

Find the length of the diagonal AC AC\,AC to 1 decimal place.

[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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