Exam-Style Question on Trigonometry
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 130. This question is similar to one that appeared on a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.
Triangle ABC has a right angle at C.
Angle BAC = 54°.
AB = 22.6 cm.
Calculate the length of BC to three significant figures.
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