A pentagon based pyramid.
A triangle has only one face and, not surprisingly, its shape is a triangle.
An icosahedron is a regular polyhedron with 20 equilateral triangle faces.
The shape described is a triangular prism.
If the base of the pyramid is a triangle then all its faces would be triangular in shape.
1 face
A triangle has only one face and, not surprisingly, its shape is a triangle.
A pentagonal is pentagon. As pentagon is 2D shape or object so it is having only one face.
A triangle has three faces. In geometry, a face refers to a flat surface of a solid shape. Since a triangle is a two-dimensional shape with three sides, it has three faces. Each side of the triangle forms one of its three faces.
A pentagon has 5 edges. Shaped a bit like a muffin cake. e.g: http://www.taospaint.com/Construct/pentagon.gif
An icosahedron is a regular polyhedron with 20 equilateral triangle faces.
The shape described is a triangular prism.
If the base of the pyramid is a triangle then all its faces would be triangular in shape.
A triangle has three faces. In geometry, a face refers to a flat surface of a three-dimensional shape. Since a triangle is a two-dimensional shape with three sides, it has three faces, one for each side. Each face of a triangle is a polygon with three vertices and three edges.
1 face
A regular dodecahedron, for example. Each face is a regular pentagon so no face has parallel sides. However, the edges on opposite faces are parallel to one another.
One side of a square would be untouched with only 3 triangle faces attached to it. To make an entire closed shape, it would need another part or some 3 dimensional bending would need to take place. A pyramid has 1 square face and 4 triangle faces. A pyramid could also have 4 triangle faces where one triangle substitutes the square face.
i think its the triangle because the base is square and all the faces is triangular shaped so its the triangle