130 likes | 347 Views
Now we will work the proofs backwards. . In the last section we started with // lines and worked toward the angles. In this section we will start with the angles and work towards the // lines.. P(3-2) Converse of the Corresponding Angle Theorem. If two lines
E N D
1. Sec. 3-2Proving Parallel Lines Objective:
To use a Transversal in Proving Lines Parallel.
To relate Parallel & Perpendicular Lines.
2. Now we will work the proofs backwards. In the last section we started with // lines and worked toward the angles.
In this section we will start with the angles and work towards the // lines.
3. P(3-2) Converse of the Corresponding Angle Theorem If two lines & a transversal intersect to form corresponding angles that are congruent then the two lines are //.
4. Th(3-3) Converse of the Alternate Interior Angle Theorem If two lines & a transversal intersect to form Alternate Interior that are congruent then the two lines are //.
6. Th.(3-4) Converse of Same-Sided Interior Angle Theorem. If two lines & a transversal intersect to form same - sided interior angles that are supplementary then the two lines are //.
8. Th(3-5) If two lines are // to the same line, then they are // to each other.
9. Th(3-5) If two lines are // to the same line, then they are // to each other.
10. Th(3-5) In a plane, if 2 lines are perpendicular to the same line, then they are // to each other.
13. Example 2: Find the m?1