. The segment from the vertex to the base line is the . Licensed by Google The Orthocenter
: Use a straightedge to draw a line from vertex through point
To construct the altitude of a triangle, you essentially perform a geometric construction of a from a vertex to the opposite side (the base) . Step-by-Step Construction How to Construct the Altitudes of a Triangle вЉї
and draw another arc that intersects the first one. Label this intersection point
: The orthocenter lies outside the triangle (you must extend the side lengths to find the intersections). Depending on the type of triangle, the orthocenter's
When you repeat this process for all three vertices, the three altitudes will intersect at a single point called the . Depending on the type of triangle, the orthocenter's location varies: Acute Triangle : The orthocenter is inside the triangle.
: Draw the arc to create two intersection points on the base line. Label these points Draw Intersecting Arcs : From point Depending on the type of triangle
: Place the compass point on a vertex (e.g., vertex