perplexus.info :: Geometry : Parallel Bisections

Parallel Bisections (Posted on 2006-11-27)

In triangle ABC, the perpendiculars from A to the internal bisectors of angles B and C meet those bisectors at X and Y. Prove that XY is parallel to BC.

See The Solution Submitted by Bractals

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re: Solution

| Comment 2 of 3 |

(In reply to Solution by Eric)

How do we know triangles ADB and AEC are isosceles?

Posted by Charlie on 2006-11-27 13:24:37

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