Given: ZABC is a right angle and ZDEF is a right angle. Prove: All right angles are congruent by showing that ZABC Z ZDEF.
What are the missing reasons in the steps of the proof?
ZABC, ZDEF are
right angles
MZABC = 90°,
m2DEF = 90°
m2ABC = m DEF
LABC DEF
Given
A
B
С
А
B:
С:

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