Question

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?

Answer 1

Answer:

• Option A

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The missing statement is:

• ∠1 + ∠2 = 180°
• ∠2 + ∠3 = 180°

Justification is:

• Angles that form a linear pair have measures that sum to 180°.

All the other options have mismatching or wrong statements or justifications:

• B) Wrong statement, the angles are not congruent.
• C) Wrong justification, angles are not vertical.
• D) Wrong justification, not matching the statement.