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HELP QUICK I WILL GIVE BRAINLIEST ANSWER! In the diagram, line m intersects line n. A two-column proof shows that vertical angles 21 and 23 are
congruent. What should be the statement and justification for step 3?

HELP QUICK I WILL GIVE BRAINLIEST ANSWER In the diagram line m intersects line n A twocolumn proof shows that vertical angles 21 and 23 are congruent What shoul class=