Math
Orthocenter Calculator
Find the orthocenter of a triangle from its three vertices.
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The orthocenter is where a triangle's three altitudes meet.
The math behind it
Each altitude passes through a vertex and is perpendicular to the opposite side. Intersecting any two altitudes gives the orthocenter.
Worked Example
For a right triangle, the orthocenter sits exactly at the right-angle vertex.
Frequently Asked Questions
Can it lie outside the triangle?
Yes — for an obtuse triangle the orthocenter is outside it.
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