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Chapter 1 and 2 Theorems

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Term
Definition
If two lines make up exactly one point   Then the two lines intersect  
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Through a line and a point not in a line   Then there is exactly one plane  
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If two lines intersect   Then exactly one plane contains the lines  
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If M is the midpoint of Segment AB   Then AM=1/2AB and MB=1/2AB  
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If Line BX is the bisector of Angle ABC   Then Angle ABX=1/2 Angle ABC and Angle XBC=1/2 Angle ABC  
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If there are two vertical angles   Then they are congruent  
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If two lines are perpendicular   Then they form congruent adjacent angles  
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If two lines form congruent adjacent angles   Then the lines are perpendicular  
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If the exterior sides of two adjacent acute angles are perpendicular   Then the angles are complementary  
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If two angles are supplements or compliments of congruent angles(or of the same angle)   Then the two angles are congruent  
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Created by: BucsBucs
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