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Mathematics, 22.07.2019 22:40 jcastronakaya
Need ! two supporting reasons are missing from the proof. complete the proof by dragging and dropping the appropriate reasons into each of the empty boxes. given: m∥n m∠3=120° prove: m∠8=60° statements reasons m∥n m∠3=120° given ∠5≅∠3 m∠5=m∠3 angle congruence postulate m∠5=120° substitution property of equality m∠8+m∠5=180° linear pair postulate m∠8+120°=180° m∠8=60° subtraction property of equality answer choices: 1. angle addition postulate 2. alternate interior angles theorem 3. substitution property of equality 4. alternate exterior angles theorem
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