An icosahedron is a regular polygon. Such a geometric figure has 30 edges, 20 triangular faces and 12 vertices, which are the junction of five edges. It is quite difficult to assemble an icosahedron from paper, but very interesting. It can be made from corrugated, wrapping or colored paper, foil. By using a variety of materials, you can add even more impact and beauty to your icosahedron.
It is necessary
- - the layout of the icosahedron;
- - paper;
- - scissors;
- - ruler;
- - PVA glue.
Instructions
Step 1
Print the layout of the icosahedron on a piece of paper, then cut it out along the dotted line. This is necessary in order to leave free space for gluing parts of the figure to each other. Try to cut the icosahedron as slowly as possible, otherwise, with the slightest shift, your craft will end up looking ugly. The need for a very neat cut is due to the fact that all triangles in a regular icosahedron have the same sides. Therefore, if any side begins to differ in its length, as a result, such a discrepancy in size will be noticeable.
Step 2
Fold the icosahedron along solid lines, then use glue to glue the places that are outlined by the dotted line, and connect the adjacent sides of the triangles to each other. For a tighter fixation, each glued side must be held in this state for 20 seconds. In the same way, you should glue all the other sides of the icosahedron. The last two ribs are the most difficult to glue together, since it takes patience and skill to connect them. Your paper icosahedron is ready.
Step 3
Such a geometric figure can be seen in everyday life. For example, a soccer ball is made in the shape of a truncated icosahedron (a polyhedron consisting of 20 hexagons and 12 pentagons). This becomes most noticeable when the resulting icosahedron is painted in black and white. You can make a soccer ball out of paper yourself, having previously printed in 2 copies a sweep of a truncated icosahedron.
Step 4
Making an icosahedron out of paper is a fun process that requires patience, thoughtfulness, and a lot of paper. But the result will be pleasing to the eye for a long time. The paper icosahedron can be given as an educational toy to a child who has reached 3 years of age. Playing with this geometric figure, the kid will develop not only spatial skills and imaginative thinking, but also get to know the world of geometry better. For an adult, the creative process of constructing a paper icosahedron with your own hands will allow you to pass the time, as well as surprise your loved ones with the ability to make complex shapes.
