Assignment 1. Establish correspondence.Polyhedron - is a geometric body...Parallelepiped - is a body, ...Tetrahedron - is a body, ...Cube - is a body, ...

Task 1. Match the concepts:

Explanation:

• A polyhedron is a solid bounded by flat faces (polygons).
• A parallelepiped is a polyhedron whose faces are all parallelograms. A special case is a rectangular parallelepiped where all faces are rectangles.
• A cube is a special type of rectangular parallelepiped where all faces are squares.
• A tetrahedron is a polyhedron composed of four triangular faces.

Therefore, the correct matches are:

• Polyhedron - limited on all sides by flat polygons.
• Parallelepiped - limited by rectangles (specifically, a rectangular parallelepiped).
• Tetrahedron - limited by triangles.
• Cube - limited by squares.

Answer:

1. Polyhedron - limited on all sides by flat polygons.
2. Parallelepiped - limited by rectangles.
3. Tetrahedron - limited by triangles.
4. Cube - limited by squares.