Proofs 3

What is the Alternate Interior Angle Theorem?

Name the angle relationship. Options: Alternate Interior, Alternate Exterior, Corresponding, Vertical Angles

Name the angle relationship: Alternate Interior, Alternate Exterior, Corresponding, Vertical Angles

If B is the midpoint of AC, then AB ≅ BC.

∠4 = ∠4

If ∠A and ∠B are complementary, then m∠A + m∠B = 90°.

If ∠1 and ∠2 are supplementary, then m∠1 + m∠2 = 180°.

If ∠CAT is a right angle, then m∠CAT = 90°. Options: Definition of Right Angle, Definition of Congruent Angles, Angle Addition Postulate, Segment Addition Postulate

If AC ⊥ BD, then ∠DBC is a right angle.

If DB bisects ∠ABC, then ∠ABD = ∠CBD.