To build a pyramid out of cardboard, use four cardboard triangles and one cardboard square. The pieces can then be taped or glued together.Continue Reading
The following example uses a 4-inch base, which is close to scale but not exact. A pyramid's exact dimensions are determined by calculating the apothem and using the Pythagorean theorem.
Step 1: Cut the base
Cut a 4-inch square piece of cardboard.
Step 2: Cut the triangles
The base of the triangles must be the exact same as the sides of the square and about 3 inches tall. However, equilateral triangles will work.
Step 3: Tape the pieces
Tape the triangular pieces together on the longer sides, and then tape the base to the triangular part and decorate if desired.Learn more about Paper Crafts
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