✦ LIBER ✦

The Formula |frac12 a(a + 1) for the Area of an Equilateral Triangle

✍ Scribed by G. A. Miller

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Discussions: The Formula 1/2a (a + 1) fo

✍ Florian Cajori 📂 Article 📅 1922 🏛 Mathematical Association of America 🌐 English ⚖ 610 KB

The Eigenvalues of an Equilateral Triang

✍ Pinsky, Mark A. 📂 Article 📅 1980 🏛 Society for Industrial and Applied Mathematics 🌐 English ⚖ 713 KB

A Green function for the equilateral tri

✍ Michelle E. Johnston; Jan C. Myland; Keith B. Oldham 📂 Article 📅 2005 🏛 Springer 🌐 English ⚖ 172 KB

A Collection of Formulae for the Area of

✍ Marcus Baker 📂 Article 📅 1885 🏛 John Hopkins University Press 🌐 English ⚖ 328 KB

A Collection of Formulae for the Area of

✍ Marcus Baker 📂 Article 📅 1885 🏛 John Hopkins University Press 🌐 English ⚖ 338 KB

An Archimedean Proof of Heron's Formula

✍ Chr. M. Taisbak* 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 209 KB