To find the measure of the missing angle \( x \) when given adjacent angles, you can use the fact that the sum of the measures of angles around a point is \( 360° \) or that adjacent angles on a straight line sum to \( 180° \). Since the details of the angles aren't fully described, I’ll cover the basic scenarios.
If the adjacent angles add up to \( 180° \) and one angle is given, you can calculate \( x \) using:
\[ x = 180° - \text{(measure of the known angle)} \]
If the adjacent angles add up to \( 360° \) (as in a full circle), you can use:
\[ x = 360° - \text{(sum of the measures of the known angles)} \]
Assuming we only have a single angle (let's say \( 130° \) is known):
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If \( x \) is adjacent to \( 130° \):
- Then \( x + 130° = 180° \)
- So, \( x = 180° - 130° = 50° \)
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If there’s another angle (not mentioned), you’d calculate depending on what is provided.
However, based on the options provided (26°, 12°, 130°), without specific details about the known angle or angles, I can't make a definite calculation. If you have further context or specific angles stated as given, please share!