$\"\"$

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One side of the triangle is $\"\"$ , angle $\"\"$ , and angle $\"\"$ .

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In triangle, sum of the three angles is $\"\"$ .

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The third angle of the triangle is $\"\"$ .

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$\"\"$

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Law of sines: $\"\"$

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$\"\"$

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Consider $\"\"$ .

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$\"\"$

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Substitute the values $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$

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Consider $\"\"$ .

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Substitute the values $\"\"$ , $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ , $\"\"$ .