5 Flat surfaces 4 flat surfaces (3 for the sides and 1 for the base).
A cube has 4 flat surfaces (called faces) and 6 vertices (or corners).
A triangular based pyramid has 4 flat faces, 6 edges and 4 vertices.
A pyramid has 4 flat faces, all of which are triangular. Don't confuse this with a square-based pyramid like those in Egypt, as they have 5 faces.
There cannot be a solid three sided figure. A solid 4 sided object is a tetrahedron.
A tetrahedron is a solid figure with four flat surfaces that are triangles. Each face of a tetrahedron is a triangle, making a total of four triangular faces in the shape.
not a pyramid!! well a triangular won't but still pyramids have 4 flat surfaces.
A square has 4 flat surfaces.
This is an impossibility. If it is a solid figure then it will have more than 1 surface. If it has only 1surface and it is a solid, then it must be a sphere, but the surface of a sphere is not flat is it? By using the word 'solid' then by definition, it is three dimensional and has thickness. A cylinder has no vertices , but it has 2flat surfaces. A vertex is a point where three lines meet, such as on a pyramid, which has 4 vertices. Have I forgotten something or is this a 'trick' question?
5 Flat surfaces 4 flat surfaces (3 for the sides and 1 for the base).
A cube has 4 flat surfaces (called faces) and 6 vertices (or corners).
A prism
A triangular based pyramid has 4 flat faces, 6 edges and 4 vertices.
A pyramid has 4 flat faces, all of which are triangular. Don't confuse this with a square-based pyramid like those in Egypt, as they have 5 faces.
There cannot be a solid three sided figure. A solid 4 sided object is a tetrahedron.
A plane figure has 2 dimensions (length & width$ & is represented by a flat surface. It takes 3 noncollinear points to make a plane. A solid figure has 3 dimensions. It not only has length & width but also depth. It takes 4 noncoplaner points to make space
rectangular prism