I would guess that bisecting angles and other geometrical constructs are used by architects when they are drafting the designs of buildings.
well an artist and a architect could use them everyday.
well i know alot of people who do origami
Thanks guys! Why would the orthocenter be so difficult for some people?
In geometry, it's a part of a triangle.
well im an artist so I know what kinds of lines in painting to make. Oh and gymnasts use it too so they can calculate were each hand and foot goes. Even if you get one of your fingers out of the spot it is supposed to be in it can mess up the whole stunt. im a gymnast too