IB skill practice

Use sine rule and cosine rule

Choose and apply the sine rule, cosine rule, and triangle area formulae with clear formula reasoning.

Paper 1, Paper 2 5 marks Difficulty 5

Sine rule missing angle

Use the sine rule with \(a=15\), \(A=50^\circ\), and \(b=12\). Find angle \(B\) to one decimal place.

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