Unit 4 Intro to Proofs

Name the property of equality that the statement illustrates.

If ∠A≅∠B and ∠B≅∠C, then ∠A≅∠C

• Reflexive Property of Congruence

• Transitive Property of Congruence

• Definition of Congruence

• Symmetric Property of Congruence

Name the property of equality that the statement illustrates.

If a = b, then a - c = b - c

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Name the property of equality that the statement illustrates.

If m∠A + m∠B = 70° and m∠B=40°, then m∠A + 40° = 70°

• Substitution Property of Equality

• Transitive Property of Equality

• Definition of Complementary Angles

• Transitive Property of Congruence

Name the property of equality that the statement illustrates.

If ∠H≅∠H, then m∠H=m∠H.

• Symmetric Property of Congruence

• Reflexive Property of Equality

• Reflexive Property of Congruence

• Definition of Congruent Angles

Name the property of equality that the statement illustrates.

If ray BD bisects ∠ABC, then ∠ABD≅∠DBC

• Definition of Angle Bisector

• Definition of Congruent Angles

• Definition of Linear Pair

• Angle Addition Postulate

Tags

CCSS.HSG.CO.C.9

Name the property of equality that the statement illustrates.

If ∠A is a right angle, then m∠A = 90°

• Definition of Right Angles

• Definition of Complementary Angles

• Definition of Supplementary Angles

• Substitution Property of Equality

Tags

CCSS.HSG.CO.A.1

A pair of adjacent angles whose non-common sides are opposite rays. The angles of a _______ form a straight angle

• Complementary Angles

• Supplementary Angles

• Linear Pair

• Postulate

Is the segment shown a median, midsegment, or an altitude?

• Median
• Midsegment
• Altitude
• IDK

Tags

CCSS.HSG.CO.C.10

Fill in the reason for number 5. 

• Definition of congruent angles
• Angle Addition Postulate
• Substitution Property
• Transitive Property

Tags

CCSS.HSG.CO.C.9

Fill in the reason for number 3. 

• Angle Addition Postulate
• Addition Property
• Definition of congruent angles
• Given