\"\"

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The angle of triangle \"\"and its side is \"\".

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If sketch the one triangle then necessary conditions: \"\" is acute, sides \"\".

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\"\"        (Write condition 1)

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\"\"        (Substitute \"\")

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\"\"           (Divide each side by \"\")

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\"\"                        (Write condition 2)

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\"\"                      (Substitute \"\")\"\"

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The solutions are \"\".