Discusses the properties and types of triangles, explaining that a triangle is a closed figure with three sides and angles. It categorizes triangles into equilateral, isosceles, scalene, obtuse, right ...

This is a preview. Log in through your library . Abstract The Morley Trisector Theorem states that for an arbitrary triangle, the Morley triangle is equilateral, where the Morley triangle is a ...

THE principal novelties in this tract are the chapters on the orthopole (with some original propositions by the author) and on orthogonal projection (mostly after Prof. Neuberg). A pretty theorem in ...