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3.4 Trigonometry (A-level only)

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Question 37

Two concentric arcs form the curved edges of an annular sector. The outer radius is 3 cm greater than the inner radius. The outer arc is 4 cm longer than the inner arc, and the sum of the two arc lengths is 28 cm.

a.

Find the angle of the sector in radians and the two radii.

[5]
b.

Find the area of the annular sector.

[2]
Markscheme

3.4 Trigonometry (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.4 Trigonometry (A-level only)

221 exam-style questions on CCEA A Level Maths 3.4 Trigonometry (A-level only), covering 3.4.1 Trigonometry (A-level only), 3.4.2 Trigonometry (A-level only), 3.4.3 Trigonometry (A-level only), 3.4.4 Trigonometry (A-level only), 3.4.5 Trigonometry (A-level only), 3.4.6 Trigonometry (A-level only), 3.4.7 Trigonometry (A-level only), and 3.4.8 Trigonometry (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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