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Trigonometric Ratios

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Question 27

A, B and C lie on a horizontal line from left to right, with D above the interval BC; segments AD, BD and CD are drawn, and angle DAC is labelled 30°.

Given AD=16 cmAD = 16 \text{ cm}AD=16 cm, BD=CD=12 cmBD = CD = 12 \text{ cm}BD=CD=12 cm and angle DAC=30∘DAC = 30^\circDAC=30∘

a.

Find the size of angle ABD ABD\,ABD to one decimal place.

[3]
b.

Find the length of ACACAC

[3]
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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