The figure that has 2 triangular faces and 3 rectangular faces is known as a triangular prism. It looks like a standard two-pole tent, or the outer packaging of a bar of Toblerone.
The object
a triangular prism.
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The figure you are referring to is a pentagonal pyramid. It has a pentagonal base with five sides and five vertices, along with five triangular faces that meet at the apex. Additionally, it has three rectangular faces that connect the triangular faces to form the complete shape of the pyramid.
A triangular prism
A triangular prism (like a bar of toblerone).A triangular prism.
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.
A rectangular prizm
A cuboid is a 3D shape that can be a cube or a rectangle, both having 2 ends, 2 sides, and a top and a bottom face.