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In the adjoining figure AD and BE are pe...

In the adjoining figure AD and BE are perpendicular ot BC and AC respectively of the `Delta ABC`. The four points `A,B,D,E` are concylic.

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True sicne the angles `angle AEB and angle ADB` are on the same side of AB. Now, `angle AEB and ADB` are both right angles. `:. angle AEB = angle ADB`
Hence the four A,B,D,E are concylic.
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