A triangle-based pyramid.
A TRIANGLE based PYRAMID is called a tetrahedron.
a triangular based pyramid
equalateral triangle
A triangular based pyramid with 4 equilateral triangle faces is a tetrahedron
A triangle-based pyramid.
A TRIANGLE based PYRAMID is called a tetrahedron.
a triangular based pyramid
A tetrahedron, though a triangular pyramid is a perfectly acceptable name.
equalateral triangle
A triangular based pyramid with 4 equilateral triangle faces is a tetrahedron
three demensioned isolated triangle.
A tetrahedron.
A tetrahedron.
name which containig triangle prism and triangle pyramid
Pyramid
As answered on another link, it's a tetrahedron, provided the faces are equal