What do you call a pyramid with a triangular base?
singleAnswer
tetrahedron
Pyramid (geometry)
pyramid with a triangular base
Pyramid (geometry) Tetrahedron Pyramid Square pyramid Hexagonal pyramid Tetrahedral number Pentagonal pyramid Louvre Pyramid Elongated triangular pyramid Pyramidal number
A lower symmetry case of the <b>triangular pyramid</b> is C3v, which has an equilateral 
<b>triangle base</b>, and 3&nbsp;... In the case of a tetrahedron the <b>base</b> is a <b>triangle</b> (any of the four faces can be 
considered the <b>base</b>), so a tetrahedron is also known as a &quot;<b>triangular pyramid</b>&quot;. 
Like&nbsp;... The <b>base</b> of a <b>pyramid</b> can be trilateral, quadrilateral, or of any polygon shape. As 
such, a <b>pyramid</b> has at least three outer <b>triangular</b> surfaces (at least four faces&nbsp;... In a right square <b>pyramid</b>, all the lateral edges have the same length, and the 
sides other than the <b>base</b> are congruent isosceles <b>triangles</b>. A right square 
<b>pyramid</b>&nbsp;... In geometry, a hexagonal <b>pyramid</b> is a <b>pyramid</b> with a hexagonal <b>base</b> upon 
which are erected six isosceles <b>triangular</b> faces that meet at a point (the apex). A tetrahedral number, or triangular pyramidal number, is a figurate number that 
represents a <b>pyramid with a triangular base</b> and three sides, called a tetrahedron
&nbsp;... In geometry, a pentagonal <b>pyramid</b> is a <b>pyramid</b> with a pentagonal <b>base</b> upon 
which are erected five <b>triangular</b> faces that meet at a point (the vertex). Like any&nbsp;... The Louvre museum, however, states that the finished <b>pyramid</b> contains 673 
glass panes (603 rhombi and 70 <b>triangles</b>). A higher figure was obtained by 
David&nbsp;... In geometry, the elongated <b>triangular pyramid</b> is one of the Johnson solids (J7). 
As the name suggests, it can be constructed by elongating a tetrahedron by 
attaching a <b>triangular</b> prism to its <b>base</b>. A pyramidal number is a figurate number that represents a <b>pyramid</b> with a 
polygonal <b>base</b> and a given number of <b>triangular</b> sides. A pyramidal number is 
the&nbsp;...
a tetrahedron
Pyramid (geometry)