Match the reasons with the statements in the proof if the last line of the proof is: 6. ∠3 and ∠5 are supplementary because of the definition of supplementary. Given: s | | t Prove: 3,5 are supplementary 1. s||t Exterior sides in opposite rays 2. ∠1 and ∠3 are supplementary Definition of supplementary 3. m∠1 + m∠3 = 180° If lines are ||, corresponding angles are equal 4. m∠1 = m∠5 1 Given 5. m∠5 + m∠3 = 180° Substitution