Problem

Supply reasons.Given:∠1 ≅ ∠2 and ∠2 = ∠3Prove:∠1 ≅ ∠ 3(Use the figure following Exercise 1...

Supply reasons.

Given:	∠1 ≅ ∠2 and ∠2 = ∠3
Prove:	∠1 ≅ ∠ 3

(Use the figure following Exercise 1.)

PROOF
Statements	Reasons
1. ?	1. Given
2. ?	2. Transitive Property of Congruence

Exercise

Supply reasons.
Given:
∠1 ≅ ∠3
Prove:
∠MOP ≅ ∠NOQ
PROOF
Statements
Reasons
1. ∠1 ≅ ∠3
1. ?
2. m∠1 = m∠3
2. ?
3. m∠1 + m∠2 = m∠MOP and m∠2 + m∠3 = m ∠NOQ
3. ?
4. m∠1 + m∠2 = m∠2 + m∠3
4. ?
5. m∠MOP = m∠NOQ
5. ?
6. ∠MOP ≅ ∠NOQ
6. ?
Exercise 2
Exercise 3