2.8/2.9 GEO HW parallel line proofs/constructions

What types of angles are Angle X and Angle Y?

• Corresponding Angles

• Alternate Interior Angles

• Alternate Exterior Angles

What types of angles are Angle X and Angle Y?

• Alternate Interior Angles

• Alternate Exterior Angles

• Corresponding Angles

What types of angles are Angle X and Angle Y

• Corresponding Angles

• Alternate Interior Angles

• Alternate Exterior Angles

What types of angles are Angle X and Angle Y

• Alternate Exterior Angles

• Alternate Interior Angles

• Corresponding Angles

Find the measure of the angle with "?".

• 111 degrees

• 69 degrees

• Perpendicular Lines

• Parallel Lines

• Congruent Lines

• Similar Lines

If ∠1 ≅ ∠2, what can you conclude?

• AB | | AC 

• ∠1 ≅ ∠2

• No conclusion can be made.

Supply the second reason.

• Linear Pair Postulate

• Alternate Interior Angles Theorem

• Vertical Angles Theorem

• Corresponding Angles Postulate

Supply the third reason.

• Vertical Angle Theorem

• Corresponding Angles Postulate

• Alternate Interior Angles Postulate

• Same Side Interior Angles Theorem

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

• Prove

• Definition of congruent angles

• Transitive Property or substitution

• Alternate exterior Angles Theorem