: If the name "Razumovskaya" is correct, you may actually be looking for her Russian Language (Russkiy Yazyk) resources rather than geometry. Common 7th Grade Geometry Topics
To find the exact solutions you need, double-check the of your workbook. If it is indeed for a math subject by an author with a similar name, it might be A.G. Merzlyak or N.G. Mindyuk .
: Radii, chords, diameters, and basic constructions using a compass and ruler.
: Median, bisector, and height; properties of isosceles triangles; and the First Criterion for Equality of Triangles . Parallel Lines : Properties and criteria for parallel lines.