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In DeltaABC has AC=13, AB=15 and BC=14. ...

In `DeltaABC` has `AC=13, AB=15 and BC=14.` Let O be the circumcenter of the `DeltaABC.` If the length of perpendicular from the point 'O' on BC can be expossed as a rational `m/n` in the lowest form, then find `(m+n).`

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VMC MODULES ENGLISH-PROPERTIES OF TRIANGLE-Level - 2
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