Proofs with Angles & Parallel Lines

Which value of x will show that lines l and m are parallel?

• 20
• 22
• 24
• 25

Tags

CCSS.8.G.A.5

Supply the second reason.

• Linear Pair Postulate

• Alternate Interior Angles Theorem

• Vertical Angles Theorem

• Corresponding Angles Postulate

Tags

CCSS.HSG.CO.C.9

Supply the third reason.

• Vertical Angle Theorem

• Corresponding Angles Postulate

• Alternate Interior Angles Postulate

• Same Side Interior Angles Theorem

Tags

CCSS.8.G.A.5

The last statement is <4 = <6. What is the last reason

• Prove

• Definition of congruent angles

• Transitive Property

• Alternate Interior Angles Theorem

Tags

CCSS.HSG.CO.C.9

Which is the correct reason for statements 2 and 4 in the proof?

• Corresponding Angles
• Substitution
• Definition of Congruent Angles
• Vertical Angles are congruent.

Tags

CCSS.7.G.B.5

Which property justifies the next step?

• Supplementary angles are always linear

• Definition of supplementary angles

• Congruent supplements thm

• Linear pair postulate

What is the reason?

• Transitive

• Substitution

• Middle Man

• Replacing

What is the REASON for Statement #2?

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

Tags

CCSS.7.G.B.5