Final answer:
The question pertains to identifying an incorrect statement about the measure of an angle, given certain parallel line segments and without a diagram. It is not possible to definitively identify the incorrect statement, but generally, an angle cannot equal 180° minus itself unless it is 90°.
Step-by-step explanation:
The question is about identifying the incorrect statement regarding the measure of ∠ S given that segment RS is parallel to segment VT, and segment RV is parallel to segment ST. When two lines are parallel, corresponding angles are equal, and alternate interior angles are also equal. The statements 'a' and 'b' suggest that ∠ S is equal to another angle which could be true if those angles are corresponding or alternate interior angles. However without a diagram or additional information, it's difficult to say which of 'a' or 'b' is true. Statement 'c' suggests that ∠ S is supplementary to another angle, likely an adjacent angle on a straight line, which could be true if the angles are a linear pair. Statement 'd' makes a similar claim.
To determine which statement about the measure of ∠ S is NOT true, we must rely on the principles of geometry. It is known that angles around a point sum up to 360°, and angles on a straight line sum up to 180°. Therefore, without additional information indicating a specific relationship between ∠ S and the other angles, we cannot accurately identify which of the provided statements is incorrect. But we can assert that an angle cannot be equal to 180° minus itself, which would imply the angle is 90° irrespective of its actual measure, making one of the choices incorrect in most contexts.