Question

to prove vertically opp. angle are equal​

Answer 1

Answer:

For a pair of opposite angles the following theorem, known as vertical angle theorem holds true: Theorem: In a pair of intersecting lines the vertically opposite angles are equal. Proof: Consider two lines \overleftrightarrow{AB} and \overleftrightarrow{CD} which intersect each other at O.

Step-by-step explanation:

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