A tetrahedron or triangular pyramid.
You can create a simple 3D object like a triangular prism using 2 triangles as the two triangular bases and 3 rectangles as the three rectangular sides that connect the corresponding edges of the triangles. This shape has a consistent cross-section along its length, making it a straightforward yet effective representation of a 3D object. Additionally, you could also create a basic roof structure by using the triangles as the roof peaks and the rectangles as the walls.
A triangular prism which will have 5 faces, 9 edges and 6 vertices
A triangular pyramid
origamiresoucecenter.com
A triangular prism.
Square pyramid
To create a 3D object, you can use various methods such as 3D modeling software (like Blender or Tinkercad), where you design the object in a virtual space using geometric shapes and tools. Alternatively, you can sculpt a physical object using materials like clay or wood. Once designed, 3D printing can bring your digital model into the physical world by layering materials based on the 3D blueprint.
There can be no closed 3D shape with only one square and 3 triangles.
What is 3D printing?3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file.The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created.Each of these layers can be seen as a thinly sliced horizontal cross-section of the eventual object.How does 3D printing work?It all starts with making a virtual design of the object you want to create. This virtual design is for instance a CAD (Computer Aided Design) file. This CAD file is created using a 3D modeling application or with a 3D scanner (to copy an existing object). A 3D scanner can make a 3D digital copy of an object.3D scanners3D modeling softwareFor more info how 3d printing works head over to : 3D Printing Basics | FAQ | Beginner's guideUpvote
Dodecahedron. The 5 "Platonic Solids" are: Cube/ 6 square sides Tetrahedron/ 4 triangles Rhomboid/ 8 triangles Dodecahedron/ 12 pentagons Icosahedron/ 20 triangles
Tetrahedron.
They are both 3d and they both form triangles on the sides to come up and make a point