Write the proof in a paragraph format.
Since AOBforms a line segment, ZXOBand ZAOXare supplementary by the
. Using the definition
of supplementary angles, m/XOB +m/AOX
180°. Since it is given that ZXOB ZAOX, then m/XOB = m/AOX.
Applying the
then 2m/XOB
180°. After dividing, m/XOB 90°.
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Write the proof in a paragraph format Since AOBforms a line segment ZXOBand ZAOXare supplementary by the Using the definition of supplementary angles mXOB mAOX class=