Question

pr prove that if two lines are intersected vertically opposite angles are equal​

Answer 1

Answer:

Step-by-step explanation:

Given two lines AB and CD intersect each other at the point O. To prove: ∠1 = ∠3 and ∠2 = ∠4 Proof: From the figure, ∠1 + ∠2 = 180° [Linear pair] → (1) ∠2 + ∠3 = 180° [Linear pair] → (2) From (1) and (2), we get ∠1 + ∠2 = ∠2 + ∠3 ∴ ∠1 = ∠3 Similarly, we can prove ∠2 = ∠4 also.

Answer 2

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