Mathematics, 09.07.2019 22:00 mckenziealexander

What is the reason for statement 5 of the two-column proof? given: ∠jnl and ∠mnk are vertical angles. m∠mnk=90° prove: ∠jnl is a right angle. statements reasons 1. ∠jnl and ∠mnk are vertical angles. given 2. ∠jnl≅∠mnk vertical angles theorem 3. m∠jnl=m∠mnk angle congruence postulate 4. m∠mnk=90° given 5. m∠jnl=90° ? 6. ∠jnl is a right angle. definition of right angle -angle congruence postulate -angle addition postulate -linear pair postulate -substitution property of equality

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What is the reason for statement 5 of the two-column proof? given: ∠jnl and ∠mnk are vertical angl...