12
8
depends on the dimensions of the 4 sides
To make a triangular-based pyramid, you would need a total of 6 straws. This includes 3 straws for the triangular base and 3 additional straws connecting each vertex of the base to the apex of the pyramid. The straws form the edges of the pyramid, creating its structure.
Fact: a polygonal pyramid has a polygon for a base. Fact: A polygon with n sides (straws) has n vertices (balls of clay). Fact: A pyramid has one vertex (clay) at the top. Fact: Each vertex of the base has a side (straw) that connects it to the top vertex (clay). Question: How many sides does a hexagon have? (base straws) Question: How many vertices does a hexagon have? (base clay) Question: How many vertices are there all together, including the top one? (clay) Question: How many sides connect the base to the top vertex? (side straws) Question: How many sides (straws) are there all together? (straws)
To create a rectangular pyramid using straws, you need a minimum of 8 straws: 4 for the base and 4 for the edges connecting the apex to each corner of the base. The base forms a rectangle, and the vertical edges connect the base corners to the apex, completing the pyramid structure. Additional straws can be used for reinforcement or to create a more complex design if desired.
8 straws.
8
8 straws 4 for the square base 4 for 1 each of the sides, to meet at the top.
depends on the dimensions of the 4 sides
6 straws are needed
8
8
10
16 straws.
6
Five. Four triangles and one square make up a square pyramid.
Fact: a polygonal pyramid has a polygon for a base. Fact: A polygon with n sides (straws) has n vertices (balls of clay). Fact: A pyramid has one vertex (clay) at the top. Fact: Each vertex of the base has a side (straw) that connects it to the top vertex (clay). Question: How many sides does a hexagon have? (base straws) Question: How many vertices does a hexagon have? (base clay) Question: How many vertices are there all together, including the top one? (clay) Question: How many sides connect the base to the top vertex? (side straws) Question: How many sides (straws) are there all together? (straws)