Geometry – 23 – Proving Lines Perpendicular

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3 responses to “Geometry – 23 – Proving Lines Perpendicular”

  1. Gary it Avatar

    i swear to fk ur gasping for air jesus fk

  2. un852 Avatar

    So are you going to finish this course or is this it???

  3. MrBbrecher Avatar

    In the item 7. You can substitute angle BEC by the angle BEA, since you showed that they are congruent angles. Then you would have BEA + BEA = 180 (by substitution). Then 2(BEA) = 180. Then BEA = 90.

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