24
You'll need 18 straws because it has 18 edges
The apex, and the shape of the base does not make a difference to what it is called.
An equilateral triangle based anti prism is simply a "normal" octahedron, as described by someone trying to make things sound more complicated than they are. It has 6 vertices.
Oh, dude, a triangular prism in 2D is called a triangle. It's like a triangle, but missing that extra dimension to make it a prism. So yeah, just a good old triangle in flatland.
18 straws.
15
24
9
15 straws are needed
You'll need 18 straws because it has 18 edges
The apex, and the shape of the base does not make a difference to what it is called.
To calculate the number of straws needed to make a rectangular prism, you would need to determine the dimensions of the prism (length, width, and height) in terms of the length of a single straw. Then, you would calculate the total number of straws required by multiplying the number of straws needed for each dimension. For example, if the prism is 10 straws long, 5 straws wide, and 3 straws high, you would need 10 x 5 x 3 = 150 straws.
An equilateral triangle based anti prism is simply a "normal" octahedron, as described by someone trying to make things sound more complicated than they are. It has 6 vertices.
8 straws.
To create a triangular prism using straws, you would need a minimum of 6 straws. This is because a triangular prism has two triangular faces and three rectangular faces. Each triangular face would require 3 straws, and each rectangular face would require 2 straws. Therefore, the total number of straws needed would be 2 (for the triangular faces) + 3 (for the rectangular faces) = 6 straws.
You need nine sides, so nine straws. But you could just use one straw and cut it into nine pieces.