The Altitudes, Feet, and Orthic Triangle

Explanations 2

• Altitudes are lines perpendicular to a side of a triangle and pass through the point opposite that side.For example, in the figure below, AD‾\overline{AD}AD, BE‾\overline{BE}BE,…

  By Anthony Jiang, Victor Wang

• Angles created by intersecting the altitudes of a triangle have some particular properties: Suppose we have △ABC\triangle ABC△ABC with feet of altitudes E,F,E,F,E,F, and GGG. Ob…

  By Darren Huang