A geometric figure with a polygonal base and triangular sides is called a pyramid.
A pyramid
A triangular pyramid is usually called a tetrahedron; its base is an equilateral triangle, as are the other three of its sides. An Egyptian pyramid has a square base; the other four sides are isosceles triangles.
It is a tetrahedron, which is defined as a four- sided figure with all triangular sides.
it's a pyramid with 5 sides.
A geometric figure with a polygonal base and triangular sides is called a pyramid.
Tetrahedron has three sides and a base all triangular.
A pyramid with a square base, or a triangular prism.
A five sided pyramid.
a pyramid.
A pyramid
A triangular pyramid is usually called a tetrahedron; its base is an equilateral triangle, as are the other three of its sides. An Egyptian pyramid has a square base; the other four sides are isosceles triangles.
It is a tetrahedron, which is defined as a four- sided figure with all triangular sides.
A pyramid perhaps
it's a pyramid with 5 sides.
Pyramids are classified by the shape of their base. A triangular pyramid has a triangular base and three triangular side faces. A square pyramid has a square base and four triangular sides. A pentagonal pyramid has a pentagonal base and five triangular sides. A hexagonalpyramid has a hexagonal base and six triangular sides, and so on.
The figure described will be a pyramid.