Using the print command on your computer, print out this pyramid
outline.
The original outline shows the Great Pyramid's actual dimensions scaled down
using the scale of 1 cm = 30 m. Depending on your printer, the outline may
appear to be slightly smaller or larger.
scale: 1 cm = 30 m
Cut out the pyramid along the solid lines.
Fold each triangle side along the dotted lines towards the center of the square base.
Align the sides of any two triangles and tape into place. Repeat until the pyramid is complete.