$\"\"$

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The two angles of the triangle are $\"\"$ and one side is $\"\"$ .

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Sum of three angles in triangle is $\"\"$ .

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

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$\"\"$

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The angle $\"\"$ .

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$\"\"$

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Find $\"\"$ .

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Law of sines : $\"\"$ .

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Consider $\"\"$ .

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Substitute $\"\"$ , $\"\"$ , and $\"\"$ in above eequation.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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Find $\"\"$ .

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Consider $\"\"$ .

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substitute corresponding values in above equation.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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