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12 Cards in this Set
- Front
- Back
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Vertical Angles Theorem
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if two angles are vertical angles, then they are congruent.
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Complementary
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if 2 angles are complementary, then the sum of their measures equals ninety degrees.
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supplementary
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if two angles are supplementary, then the sum of their measures equals 180 degrees.
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If two angles are both supplementary and congruent, then their measures equal 90 degrees.
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If two angles are both supplementary and congruent, then their measures equal 90 degrees.
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if two angles are the complements of the same angle then the two angles are congruent.
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if two angles are the complements of the same angle then the two angles are congruent.
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All right angles are equal to each other.
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All right angles are equal to each other.
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Triangle Sum Theorem.
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The sum of the measures of the three angles of any triangle is 180 degrees.
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If a transversal intersects two parallel lines, then corresponding angles are congruent.
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If a transversal intersects two parallel lines, then corresponding angles are congruent.
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If a transversal intersects two parallel lines, then alternate interior angles are congruent.
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If a transversal intersects two parallel lines, then alternate interior angles are congruent.
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If a transversal intersects two parallel lines, then alternate exterior angles are congruent.
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If a transversal intersects two parallel lines, then alternate exterior angles are congruent.
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If a transversal intersects two parallel lines, then same side interior angles are supplementary.
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If a transversal intersects two parallel lines, then same side interior angles are supplementary.
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If two lines and a transversal form corresponding angles that are congruent, then the lines are parallel.
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If two lines and a transversal form corresponding angles that are congruent, then the lines are parallel.
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