Geometric proofs

What is the justification?

• Vertical Angles Theorem

• Transitive Property of Equality

• Compliment Theorem

• Reflexive Property of Congruence

Tags

CCSS.HSG.SRT.B.5

Given: m∠LAN = 30⁰ , m∠1 = 15⁰
Prove: AM bisects ∠LAN
Step 1: m∠LAN = 30⁰ 
What is the justification for Step 1?

• Given
• Substitution
• Angle addition postulate
• Definition of congruent angles

Tags

CCSS.HSG.CO.C.9

What is the justification?

• Segment Addition Postulate

• Definition of Midpoint

• Addition Property of Equality

• Complement Theorem

Tags

CCSS.HSG.SRT.B.4

What is the justification?

• Definition of Supplementary Angles

• Vertical Angles Theorem

• Definition of an Angle Bisector

• Angle Addition Postulate

Tags

CCSS.7.G.B.5

What is the justification?

• Transitive Property of Equality

• Subtraction Property of Equality

• Division Property of Equality

• Substitution Property of Equality

Tags

CCSS.HSG.SRT.B.5

Name the property described:

If PQ = RS then RS = PQ

• Reflexive

• Symmetric

• Transitive

• Addition

Tags

CCSS.HSG.CO.C.10

What is the correct reason for

Reason #2?

• Definition of a Straight Angle

• Prove

• Definition of a Supplementary Angles

• Transitive Property

Tags

CCSS.7.G.B.5

What is the correct reason for

Reason #1?

• Given

• Prove

• Definition of a Supplementary Angles

• Transitive Property

Tags

CCSS.7.G.B.5

What is the correct reason for

Reason #3?

• Definition of a Straight Angle

• Prove

• Definition of a Supplementary Angles

• Transitive Property

Tags

CCSS.7.G.B.5

What is the "statement" for step 2 of the proof?

• AD=AD
• AD=DA
• HD=DN
• HA = AN

Tags

CCSS.HSG.SRT.B.5