A geometric figure with a polygonal base and triangular sides is called a pyramid.
Pyramid
pyramid
a polygonal prism or a polygond
A pyramid.
A three-dimensional figure with a polygon base and triangular faces that meet at a common vertex is called a pyramid. The base can be any polygon, such as a triangle, square, or pentagon, and the apex is the common vertex where all the triangular faces converge. Pyramids are named based on the shape of their base, such as triangular pyramids or square pyramids.
Pyramid
A polygonal pyramid.
pyramid
pyramid
a polygonal prism or a polygond
A pyramid.
A pyramid.
A three-dimensional figure with a polygon base and triangular faces that meet at a common vertex is called a pyramid. The base can be any polygon, such as a triangle, square, or pentagon, and the apex is the common vertex where all the triangular faces converge. Pyramids are named based on the shape of their base, such as triangular pyramids or square pyramids.
The description given fits to that of a pyramid
If I am correct I'm sure any pyramid does now if you knew what shape the base is or how many triangle faces I could answer
It is a pyramid
Polygonal Prism Actually, it is a polygonal pyramid. A polygonal prism would have two polygonal faces.