$\"\"$

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Observe the figure:

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The angles of the triangle are $\"\"$ and $\"\"$ .

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One of sides of the triangle is $\"\"$ .

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The third angle is $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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Find remaining sides $\"\"$ and $\"\"$ .

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Apply sines law: $\"\"$ .

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Consider $\"\"$ .

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

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$\"\"$

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$\"\"$

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Consider $\"\"$ .

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

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$\"\"$

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$\"\"$

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The third angle is $\"\"$ .

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The two sides are $\"\"$ and $\"\"$ .