One of the adjacent corners is 1050. Find the other corner.

Adjacent corners are angles that form one flat angle. If a ray is drawn from the middle of a straight segment, then the two angles formed by the ray will be adjacent. The flattened angle is always 180 °, so if the known adjacent angle is 105 °, the second adjacent angle is equal to the difference:

180 ° – 105 ° = 75 °.

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