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 ...

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 ...

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 ...