A pyramid has 1 square base.
A pyramid.
polyhedron
square base pyramid
Square Pyramid
A square based pyramid.
To find the base of a figure, you first need to identify the shape of the figure. The base of a figure is typically the bottom or lower side that forms the foundation or support for the rest of the shape. For example, in a triangle, the base is usually the side on which the triangle stands. In a rectangular prism, the base is one of the two parallel and congruent rectangular faces.
That would be a pyramid. A square (or rectangular) base where a line rises up from each corner of the square at an equal degree less than 90o and meet at a point above the center of the square. All four sides will be triangular.
the cone.
There is 5 faces 4 vertex & 1 base. there is 1 base 4 vertexs & 1 base understand.
1 square yard = 9 square feet.
The 3D shapes that have at least one square face are known as prisms. Prisms are polyhedrons with two parallel and congruent faces called bases, and lateral faces that are parallelograms. When one of the bases of a prism is a square, it is called a square prism. Other examples of prisms with a square face include rectangular prisms and cube-shaped prisms.