Expert Mathematics for Ordinary Levels - ANGLES - A Step-by-Step Approach is a text written to comprehensively and effectively cover the content of important aspects of Angle Theory for most ordinary level Mathematics syllabuses. This text presents material in seven (7) crucial aspects dealing with Angles: (1) Angles Theory (2) Angles & Straight Lines (3) Angles in Triangles (4) Angles in Quadrilaterals and Polygons (5) Angles in Circles (6) Trigonometry (7) Sine & Cosine Rules. In this text, topics are presented with the aid of step-by-step solution of problems and diagrams where necessary. This strategy allows the reader to understand the theory presented. At the end of each chapter there are a number of practice questions provided for the reader to attempt. The answers for these questions are included at the back of the text.