Inventional Geometry: a Series of Problems Intended to Familiarize the Pupil With Geometrical Conceptions and to Exercise His Inventive Faculty

Inventional Geometry: a Series of Problems Intended to Familiarize the Pupil With Geometrical Conceptions and to Exercise His Inventive Faculty by William George Spencer is a comprehensive guide focusing on practical and theoretical geometry. It covers topics such as shapes angles circles polygons and the division of figures. The book introduces the concept of a protractor for measuring angles and determining shape areas. Through problems and exercises it enhances the reader's understanding of geometry and problem-solving skills.