In which of the diagrams are the angles vertically opposite?
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In which of the diagrams are the angles vertically opposite?
Remember the definition of angles opposite by the vertex:
Angles opposite by the vertex are angles whose formation is possible when two lines cross, and they are formed at the point of intersection, one facing the other. The acute angles are equal in size.
The drawing in answer A corresponds to this definition.
Does the drawing show an adjacent angle?
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