Textbook. - M. : Education, 2014. — 255 s. — ISBN 978-5-09-028109-6 . Clear structure, high scientific, accessible presentation, simplicity and brevity are the hallmarks of this textbook. The authors present geometry as a science closely related to the surrounding world. The appearance of an abstract concept is preceded by a real picture, which argues the need for this abstraction. A set of tasks is given to each paragraph. Among them are the main tasks, t. e. It is mandatory for all[edit] It is in the tasks that the principle of developmental learning . is laid down. Great help to students will be provided with a subject index and answers. Recommended by the Ministry of Education and Science of the Russian Federation.