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3.4 Trigonometry (A-level only)

3.4 Trigonometry (A-level only)

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Question 20

Figure 1 below shows the sector AOB AOB\,AOB of a circle with radius r r\,r cm. The triangle AOB AOB\,AOB is equilateral.

Figure for question 5

The area of the sector AOB AOB\,AOB is 24π 24\pi\,24π cm2^22.

Find, in terms of π\piπ, the perimeter of the sector.

[4]
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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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