CWzz2-8R: Review Algebraic, Segment & Angle Proofs

For any numbers a, b, and c, if a = b and b = c, then a = c.

• Transitive Property         
• Symmetric Property
• Reflexive Property
• Substitution Property

What is always the 1st statement in reason column of a proof?

• Prove
• Given
• Reason
• Statement

Step 2 is what

• Substitution property

• Multiplication property of equality
• Division property of equality
• Distributive Property

What is reason 2?

• Addition Property of Equality
• Subtraction Property of Equality
• Multiplication Property of Equality
• Division Property of Equality

What is the reason for the statement below?
Given: m∠1 = 63
m∠1 + m∠2 = 90
Prove: 63 + m∠2 = 90

• Subtraction Property of Equality

• Reflexive Property of Equality

• Addition Property of Equality

• Substitution Property of Equality

What is the justification?

• Congruent Complements Theorem

• Angle Bisector Theorem

• Angle Addition Postulate

• Division Property of Equality

If M is the midpoint of AB, then AM = MB. Which of the following "reasons" fits for the statement?

• Addition POE

• Def. of Midpoint

• Reflexive POE

• Symmetric

If A = B, then 8A = 8B Which of the following "reasons" fits for the statement?

• Multiplication POE

• Division POE

• Reflexive POE

• Addition POE

If <1 and <2 are complementary, then m<1 + m<2 = 90

• Addition POE
• Subtraction POE
• Def of right angle
• Def of Complementary Angles

What is the justification?

• Symmetric Prop.
• Angle addition postulate
• Reflexive Prop
• Transitive Prop.