\"\"

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The given angle measure is \"\". \ \

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Since the remaining two angles are congruent, the measures of each missing angle is same.

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Let the missing angle is x.

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The sum of the measures of the angles of a triangle is 180.

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\"\"        (Angle sum theorem)

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\"\"            (Add: \"\")

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\"\"                     (Subtract 39 from each side)

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\"\"                      (Divide each side by 2)\"\"

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The angle measure of the missing angles is 70.5.