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4D and BC are egual perpendiculars to a linesegment AlB (see Fig. 7.18) Show that CD bisectsA.Fig. 7.18 |
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Answer» In ∆AOD and ∆BOC AD = BCOAD = OBC (90°)angle BOC = angle AOD (vertically opposite angle)By AAS rule ∆AOD and ∆BOC are congurent. so by CPCT OB = OA |
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