Art > 2012-2018 Trigonometries

First described in Euclid's "Elements", books 1–4, c. 300 BC, triangles are three-sided, two-dimensional flat shapes. They are classified according to the lengths of their sides. There are three main types...1. equilateral- a regular polygon with three equal sides and three angles each measuring 60°, 2. isosceles- with two equal-sided lengths and two equal-measured angles, and 3. scalene- with all sides of different lengths and all angles of different measurements. The painting "Basic Facts" is based on an equilateral triangle, with hints of isosceles and scalene.