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Proving Lines Perpendicular Page 4. To prove lines perpendicular: 12 Prove: Given: s t StatementReason 1. Given 2. Two intersecting lines that form congruent.

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Presentation on theme: "Proving Lines Perpendicular Page 4. To prove lines perpendicular: 12 Prove: Given: s t StatementReason 1. Given 2. Two intersecting lines that form congruent."— Presentation transcript:

1 Proving Lines Perpendicular Page 4

2 To prove lines perpendicular: 12 Prove: Given: s t StatementReason 1. Given 2. Two intersecting lines that form congruent adjacent angles are perpendicular Statement 1. Given Reason 1. Given

3 StatementReason Pg. 4 #1 3. Addition Postulate 4. Partition Postulate 5. Substitution Postulate 1. Given 2. Given 6. Two intersecting lines that form congruent adjacent angles are perpendicular

4 StatementReason 1. Given 2. Given Pg. 4 #2 3. An angle bisector divides an angle into two congruent parts 4. Reflexive postulate 6. CPCTC 7. Two intersecting lines that form congruent adjacent angles are perpendicular 1 2

5 StatementReason 1. Given 2. Given Pg. 4 #3 3. Reflexive postulate 5. CPCTC 9. Two intersecting lines that form congruent adjacent angles are perpendicular 8. CPCTC E 1 2 6. Reflexive postulate 4 3

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