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1.5 Trigonometry

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Question 16

In triangle $A B C$ , $A C = 8$ cm and $B C = 11$ cm.

The area of triangle $ABC\,$ is 30 cm $^2$ , and angle $ACB\,$ is obtuse.

Find the length $A B$ , giving your answer to 3 significant figures.

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Markscheme

1.5 Trigonometry Questions

A Level
Maths
1.5 Trigonometry

97 exam-style questions on WJEC A Level Maths 1.5 Trigonometry, covering 1.5.1 Trigonometry, 1.5.2 Trigonometry, 1.5.3 Trigonometry, 1.5.4 Trigonometry, and 1.5.5 Trigonometry. Each one has a worked solution and a mark scheme showing where the marks go.

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