Question

prove that if lines intercet each other then the vertically opposite angles are equal​

Answer 1

Answer:

COB=180∘−∠BOD ---(1). Now, let us consider the angles on the line AB. So, we get ∠COB+∠AOC=180∘ ---(2). ... So, we have proved that if two lines intersect each other, then the vertically opposite angles are equal.

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Answer 2

Answer:

∆COB=180∘−∠BOD ---(1). Now, let us consider the angles on the line AB. So, we get ∠COB+∠AOC=180∘ ---(2). ... So, we have proved that if two lines intersect each other, then the vertically opposite angles are equal.

Step-by-step explanation:

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