The diagram shows a field, $$\(A B C D\)$$, on horizontal ground. $$\(B C=192 \mathrm{~m}, C D=287.9 \mathrm{~m}, B D=168 \mathrm{~m}\)$$ and $$\(A D=205.8 \mathrm{~m}\)$$. Calculate the area of triangle $$\(B C D\)$$. ........................................ . $$\(\mathrm{m}^{2}\)$$

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