Legends tell about the properties of the pyramid. A dull blade, after lying for a while inside a paper or even wire pyramid, turns out to be sharp. You can try the properties of the pyramid yourself.
It is necessary
- Paper
- Ruler
- Gon
- Pencil
- Protractor
- Scissors
Instructions
Step 1
Draw a square with a given side on the sheet.
Step 2
Divide each side of the square in half. Draw perpendiculars from the resulting points. Set aside an arbitrary line segment on each perpendicular. It should be more than half the side of the square. Connect the resulting point to the two corners of the square on the same side as the perpendicular. In the same way, connect to the corners of the ends of the remaining perpendiculars. You have a pyramid sweep.
Step 3
On one side of each face, set aside a small segment for gluing. Draw lines parallel to the edges of the pyramid.
Step 4
Cut out the pyramid. Fold the flat pattern along the lines. Cut the gluing allowances at an angle of approximately 45 °. Glue the three sides of the pyramid at the seams. You do not need to glue the last edge.
Place a small object inside the pyramid and observe its properties.
