How To Construct The Altitudes Of A Triangle Вљї -

). Open the compass wide enough so that when you draw an arc, it intersects the opposite side ( BCcap B cap C ) at two distinct points.

: Use a straightedge to draw a line from vertex through point How to Construct the Altitudes of a Triangle вЉї

: Draw the arc to create two intersection points on the base line. Label these points Draw Intersecting Arcs : From point Label these points Draw Intersecting Arcs : From

, draw an arc below the base line. Keeping the same compass width, place the point on How to Construct the Altitudes of a Triangle вЉї

: Place the compass point on a vertex (e.g., vertex

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

: The orthocenter is exactly at the vertex of the right angle.