Basic Geometry Proofs

What is the reason?

• Definition of Complementary
• Definition of 180 
• Definition of supplementary
• Angle Addition

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.SRT.C.7

What is the REASON for Statement #1?

• Given
• Definition of Complementary Angles
• Substitution Property
• Reflexive Property of Congruence

Tags

CCSS.HSG.CO.C.9

What is the REASON for Statement #2?

• Given
• Definition of Complementary Angles
• Substitution Property
• Reflexive Property of Congruence

Tags

CCSS.HSG.CO.C.9

What is the first statement usually in a proof?

• What you want to prove

• The given

• A theorem

• A postulate

What is the last statement in a proof?

• The given

• What you are proving

• Vertical Angle Theorem

• Alt. Interior angle theorem

What divides a segment into two congruent parts?

• An angle bisector

• A segment bisector

• Vertical Angles

• Alt. Interior Angles

Tags

CCSS.HSG.CO.D.12

What divides an angle into two congruent angles?

• Angle Bisector

• Segment Bisector

• Midpoint

• Vertical Angles

Tags

CCSS.HSG.CO.D.12

On a two column proof.. what do we write on the right side of the table?

• Statements

• Reasons

On a two column proof what do we write on the left side of the table?

• statements

• reasons

• Distributive property

• Reflexive property

• Commutative property

• Transitive property

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.B.8

CCSS.HSG.CO.B.7

CCSS.HSG.CO.C.10

CCSS.HSG.SRT.B.5