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Drag an expression or statement to each box to complete the proof.
21 and 22 form a linear pair, so 21 and 22 are supplementary by the
supplementary.
= 180° by the definition of supplementary. It is given that 22
angle congruence postulate
Therefore, m/1+
By substitution, m/1 + m/3 = 180°, so 21 and 23 are supplementary by the definition of
, so m/2 = m/3 by the
m/2
linear pair postulate
m/3 23 22

HELP FAST Drag an expression or statement to each box to complete the proof 21 and 22 form a linear pair so 21 and 22 are supplementary by the supplementary 180 class=


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