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Unformatted text preview: Take the opposite of the statement Not p Inverse ∼ p → ∼ q replacing the hypothesis with its negation and replacing the conclusion with its negation If two angles are not vertical angles, then they are not congruent. Contrapositive ∼ q → ∼ p negating the hypothesis, negating the If two angles are not conclusion, and switching them congruent, then they are not vertical angles. CKC page 138 1. If the official language is English , then you are in Guyana. 2. If you are in Peru, then the official language is Quechua. 3. If you are in Brazil, then the official language is Portuguese. 4. 5a. b....
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- Spring '10
- Geometry, Official language, Mathematical proof