ERRE Given: ZABC is a right angle and ZDEF is a right angle.
Prove: All right angles are congruent by showing that ABC – DER
What are the missing reasons in the steps of the proof?
LABC, ZDEF are
right angles
MZABC = 90°
m_DEF = 90°
m2ABC = m_DEF
ZABO = ZDEF
Given
B
A:
B:
C:

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Solve x+3y=6 and 4x-6y=6 by elimination . show work !