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Year 12 Maths Standard 2 (2027) Trigonometry

The Sine Rule

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Questions
Question 1
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In triangle \(ABC\), angle \(A=40^\circ\), angle \(B=75^\circ\) and side \(a=BC=8\text{ cm}\). Find the length of side \(b=AC\), correct to two decimal places.

Triangle ABC, sine rule for side bTriangle ABC with angle A=40 degrees, angle B=75 degrees, side BC=8 cm; side AC=b is unknown. A B C 8 cm b=? 40° 75°
12.02
 \text{ cm} (2 d.p) 1 mark

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