Many students need help solving math problems. This kind of advice and recommendations when explaining the methods of solving problems can be obtained in this book. This manual is a guide to solving problems from the mathematics section "Geometry" for areas of study in which mathematics is a non-core subject. Along with the presentation of methods and methods for solving typical problems, the manual provides evidence of a number of formulas that can be considered as solving problems in a general form, which will help the study of theoretical material.