1. Geometry/Trig 2 Name: __________________________
More Proof Practice!! Date: ___________________________
Complete each proof.
1. Given: ÐACB, mÐ1 = mÐ3
Prove: mÐ2 = mÐ4
2. Given: MA = TH
Prove: MT = AH A 1 3 2 4 B C
Statements
Reasons
1. ÐACB or
mÐABC = mÐACB 1
2. mÐ1 + mÐ2 = mÐABC
mÐ3 + mÐ4 = mÐACB 2
3. mÐ1 + mÐ2 = mÐ3 + mÐ4 3
4. mÐ1 = mÐ3 4
5. mÐ2 = mÐ4 5 M A T H
This prove should take between 4 and 5 steps.
Statements
Reasons 1. 2. 3. 4. 5.

2. Geometry/Trig 2 Name: __________________________
Proof 3 S I T
Given: ST = RN; IT = RU Prove: SI = UN R U N
Statements
Reasons
1. _______________________________ _______________________________
2. _______________________________ _______________________________
_______________________________
3. _______________________________ _______________________________
4. _______________________________ _______________________________
5. _______________________________ _______________________________
Proof 4 B C
Given: mÐAOC = mÐBOD Prove: mÐ1 = mÐ3 A 1 2 3 D O
Statements
Reasons
1. _______________________________ _______________________________
2. _______________________________ _______________________________
_______________________________
3. _______________________________ _______________________________
4. _______________________________ _______________________________
5. _______________________________ _______________________________