Geometry/Trig 2 Name: __________________________ More Proof Practice!! Date: ___________________________ Complete each proof. 1. Given: ÐABC @ ÐACB, mÐ1 = mÐ3 Prove: mÐ2 = mÐ4 2. Given: MA = TH Prove: MT = AH A 1 3 2 4 B C Statements Reasons 1. ÐABC @ 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.

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