OCR C2 — Question 2

Exam BoardOCR
ModuleC2 (Core Mathematics 2)
TopicSine and Cosine Rules
2. The diagram shows triangle \(A B C\) in which \(A B = 12.6 \mathrm {~cm} , \angle A B C = 107 ^ { \circ }\) and \(\angle A C B = 31 ^ { \circ }\). Find
  1. the length \(B C\),
  2. the area of triangle \(A B C\).
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