Calculate the area of the triangle. ...................................... $$\(\mathrm{cm}^{2}\)$$
Exam No：0580_w20_qp_22 Year：2020 Question No：19(b)
Answer:
\(11.7\) or \(11.66\) to \(11.67\)
Knowledge points:
E6.4 Solve problems using sine and cosine rules and the area formula for triangles.
Solution:
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