✦ LIBER ✦

On the Orthocentric Quadrilateral

✍ Scribed by Nathan Altshiller-Court

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

On the feuerbach-spheres of an orthocent

✍ E. Egerváry 📂 Article 📅 1950 🏛 Akadmiai Kiad 🌐 English ⚖ 578 KB

Orthocentric and mediocentric pentagons

✍ John F. Rigby 📂 Article 📅 1994 🏛 Springer 🌐 English ⚖ 706 KB

Orthocentric Simplices and Biregularity

✍ Allan L. Edmonds; Mowaffaq Hajja; Horst Martini 📂 Article 📅 2008 🏛 Springer 🌐 English ⚖ 340 KB

Orthocentre of a Simplex

✍ Konnully, A. O. 📂 Article 📅 1964 🏛 Oxford University Press 🌐 English ⚖ 183 KB

Suborthogonality and orthocentricity of

✍ Miroslav Fiedler 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 134 KB

Orthocentric Properties of the Plane n-L

✍ F. Morley 📂 Article 📅 1903 🏛 American Mathematical Society 🌐 English ⚖ 849 KB