Title: Geometry in problems
Subjects: Study and teaching (Secondary), Plane Geometry, Geometry -- Instructional exposition (textbooks, tutorial papers, etc.)., Study and teaching (Middle school), Geometry -- Real and complex geometry -- Elementary problems in Euclidean geometries, Geometry, Textbooks, Geometry, plane, study and teaching, Instructional exposition (textbooks, tutorial papers, etc.), Real and complex geometry, Elementary problems in Euclidean geometries