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slavikrds [6]
3 years ago
12

What is the missing reason in the proof?

Mathematics
2 answers:
Slav-nsk [51]3 years ago
3 0

We know that two angles are congruent if their values are the same or in other words if they are equal. Now, in step #2 it is given that m\angle ABC=90^{\circ} and in step #7 it has been proven that m\angle ABD=90^{\circ}. Thus, since both the angles, \angle ABC and \angle ABD have equal values or equal measures, both amounting to 90^{\circ}. Therefore, by definition of congruent angles, \angle ABC \cong \angle ABD/.

Thus, the missing reason in the proof at step #8 is "definition of congruent angles".

Ronch [10]3 years ago
3 0

Answer:

c

Step-by-step explanation:

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