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9 Terms

1
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Midpoint

A midpoint cuts a segment into 2 congruent segments

2
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Perpendicular lines

  1. <1 and <2 are right angles

    perpendicular lines form right angles

  2. <1 and <2 are congruent

    all right angles are congruent

3
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Vertical angles

<1 and <2 are congruent

Vertical angles congruent

4
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Angle bisector

<1 and <2 are congruent

And angle bisector cuts an angle into 2 congruent angles

5
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Segment bisector

Lime and lime congruent

A segment bisector cuts a segment into 2 congruent segments

6
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Linear pair

  1. <1+<2=180

    linear pairs add to 180

  2. <2 congruent to <3

    supplements of congruent angles are congruent

7
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Parallel lines

Parallel lines cut by a transversal form congruent alternate interior angles

8
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Parallel lines

II lines cut by a transversal form congruent corresponding angles

9
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Isoceles

  1. An isoceles triangle has 2 congruent sides

  2. An isoceles triangle has 2 congruent angles