Intro to Proofs

If AB=BC and BC=CE, then AB=CE

• Transitive property

• Multiplication of equality

• Reflective property of equality

• Distributive property of equality

What is reason 5?

• Transitive Property
• Reflexive Property
• Symmetric Property
• Prove

Tags

CCSS.HSA.REI.A.1

What is the REASON for Statement #1?

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

Tags

CCSS.HSG.CO.C.9

CCSS.HSG.SRT.C.7

What is reason 3?

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

Tags

CCSS.HSA.REI.A.1

What is the correct reason for line 5 and 6?

• 5.Transitive Property of equality 6. Substitution

• 5.Algebra 6.Definition of ≅

• 5.Substitution 6.Definition of ≅

• 5.Angle addition postulate 6.Substitution

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.B.7

CCSS.HSG.CO.B.8

CCSS.HSG.CO.C.10

CCSS.HSG.CO.C.9

CCSS.HSG.SRT.B.5

What is the reason?

• Definition of vertical angles
• Angle addition postulate
• Definition of angle bisectors
• Vertical angles are congruent

Tags

CCSS.HSG.CO.C.9

Select the definition, property, postulate or theorem that justifies the statement.

If m<1 + m<2 = 180 and m<2 +m<3 = 180, then <1≅<3.

• Transitive Property

• Definition of ≅ Angles

• Supplementary of Same Angles

• Definition of Complementary Angles

Tags

CCSS.HSG.CO.C.10

CCSS.HSG.CO.C.9

What is the relationship between <EAD and <DAC?

• They are a linear pair.

• They are complementary.

• They are supplementary.

• They are adjacent.

Tags

CCSS.7.G.B.5

If Q is between P and R, then PQ +QR=PR.

• Segment Addition postulate

• Definition of Midpoint

• Addition Property of equality

• Transitive Property

What is the correct statement for 3?

• AD=EA

• AB=CD

• AB≅EF

• AB=EF

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.B.7

CCSS.HSG.CO.B.8

CCSS.HSG.SRT.B.5