The Area of a Triangle, its Circumradius, and the Perimeter of its Orthic Triangle

Let ABC be an acute triangle and A'B'C' be its orthic triangle (the triangle formed by the endpoints of the altitudes of ABC). Let be the perimeter of A'B'C', be the circumradius of ABC, and be the area of ABC. Then .



  • [Snapshot]
  • [Snapshot]
  • [Snapshot]
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.