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3.5 Trigonometry (A-level only)

3.5 Trigonometry (A-level only)

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Question 26

Figure 1 below shows a circle with centre C C\,C and equation

(x+2)2+(y+1)2=25(x + 2)^2 + (y + 1)^2 = 25(x+2)2+(y+1)2=25

The circle intersects the positive xxx-axis at A A\,A and intersects the positive yyy-axis at BBB. The sector ACB ACB\,ACB is shaded on the diagram.

Figure for question 8

a.

Show that the angle ACB ACB\,ACB is 0.958 radians, correct to three significant figures.

[5]
b.

Find the perimeter of the sector ACBACBACB, giving your answer to three significant figures.

[3]
Markscheme

3.5 Trigonometry (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.5 Trigonometry (A-level only)

225 exam-style questions on WJEC A Level Maths 3.5 Trigonometry (A-level only), covering 3.5.1 Trigonometry (A-level only), 3.5.2 Trigonometry (A-level only), 3.5.3 Trigonometry (A-level only), 3.5.4 Trigonometry (A-level only), 3.5.5 Trigonometry (A-level only), 3.5.6 Trigonometry (A-level only), 3.5.7 Trigonometry (A-level only), and 3.5.8 Trigonometry (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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