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1.8 E: Trigonometry

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Question 31

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 8

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]
Markscheme

1.8 E: Trigonometry Questions

  1. A Level
  2. /Maths
  3. /1.8 E: Trigonometry

317 exam-style questions on AQA A Level Maths 1.8 E: Trigonometry, covering 1.8.1 Trigonometric definitions, rules and radians, 1.8.2 Small angle approximations (A-level only), 1.8.3 Trigonometric functions and exact values, 1.8.4 Reciprocal and inverse trigonometric functions (A-level only), 1.8.5 Trigonometric identities, 1.8.6 Compound and double angle formulae (A-level only), 1.8.7 Solving trigonometric equations, 1.8.8 Proofs with trigonometric identities, and 1.8.9 Trigonometry in context. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank