In the straightedge and compass construction of the perpendicular line below, how do you know that AB ICD?
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O A. The angles at the intersection of the two lines can be proven to be
congruent and supplementary, so they meet at a right angle and
the lines are perpendicular.
O B. The angles at the intersection of the two lines can be proven to be
supplementary, so they meet at a right angle and the lines are
perpendicular.
C. The angles at the intersection of the two lines can be proven to be
congruent, so they meet at a right angle and the lines are
perpendicular.
O D. The angles at the intersection of the two lines can be proven to be
congruent and complementary, so they meet at a right angle and
the lines are perpendicular.