Given line AE and line BD that intersect at point C, the following is an indirect paragraph proof proving that vertical angles ACB and ECD are congruent:

lines AE and BD intersect at point C

Assume ∠ACB and ∠ECD are not congruent. The Vertical Angles Theorem says that vertical angles must be congruent. Since this contradicts the assumption, vertical angles ACB and ECD are congruent.

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Question

Given line AE and line BD that intersect at point C, the following is an indirect paragraph proof proving that vertical angles ACB and ECD are congruent:

lines AE and BD intersect at point C

Assume ∠ACB and ∠ECD are not congruent. The Vertical Angles Theorem says that vertical angles must be congruent. Since this contradicts the assumption, vertical angles ACB and ECD are congruent.

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anonymous · Answer

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anonymous · Answer

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