Given: ∠ABC is a right angle and ∠DEF is a right angle. Prove: All right angles are congruent by showing that ∠ABC ≅∠DEF. What are the missing reasons in the steps of the proof? A: B: C:

Question

Revolt · Accepted Answer

definition of right angle; Selection 1: definition of right angle; Selection 2: substitution property; Selection 3: definition of congruent angles

Introduction to Proof

Given: ∠ABC is a right angle and ∠DEF is a right angle. Prove: All right angles are congruent by showing that ∠ABC ≅∠DEF. What are the missing reasons in the steps of the proof? A: B: C:

More from this Course