What is true about VERTICAL angles?

Answer:
Step-by-step explanation:
Vertical Angles are the angles opposite each other when two lines cross. "Vertical" in this case means they share the same Vertex (corner point), not the usual meaning of up-down.
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Answer:
their measurements are the same
Step-by-step explanation:
Vertical angles are always equal , which means their measurements are the same. Vertical angles are formed from the same lines and share a vertex