Proof
Given:
How can you use the given information?
Both
Prove:
Proof:
The following theorems are similar to the Congruent Supplements Theorem.
Theorem
If two angles are complements of the same angle (or of congruent angles), then the two angles are congruent.
If …
Then …
You will prove Theorem 2-3 in Exercise 13.
Theorem 2-4
Theorem
All right angles are congruent.
If …
Then …
You will prove Theorem 2-4 in Exercise 18.
Theorem 2-5
Theorem
If two angles are congruent and supplementary, then each is a right angle.
If …
Then …
You will prove Theorem 2-5 in Exercise 23.