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Geography 17 Online
jadaboss:

What is the reason for Statement 5 of the two-column proof? Angle Addition Postulate Substitution Property of Equality Angle Congruence Postulate Linear Pair Postulate 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

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