The humble triangle has been with us from the ancient pyramids to the modern days, being one of the most recognizable, interesting, and useful shapes in geometry. Ancient mathematicians laid the ...

Well, what is the best way to cut a sandwich in half? Surely triangles don't really have "more sandwich," right? That's geometry and the law of conservation of matter. But something about the ...

A triangle is a polygon. It is a closed 3-sided shape made up of straight lines. The ‘tri-’ part of the word triangle means three. A triangle has 3 sides and 3 angles. Interior angles are the angles ...

[Vintage VHS] Math Made Easy: Quick Geometry, Geometric Terms, Angles, Triangles, Parallelograms, Circles ...

A scalene triangle has 3 sides of different lengths and 3 unequal angles. An isosceles triangle has 2 sides of equal length. The dashes on the lines show they are equal in length. The angles at the ...

Genocript, Zama-shi, Kanagawa, Japan. Discrete differential geometry studies discrete equivalents of the geometric notions and methods of differential geometry, such as notions of curvature and ...