A pyramid. The square being the base and the triangles the 'sides' - each having a side connected to a side of the square - the other sides connected to 'neighbor-triangles'.
square base pyramid and a triangular base pyramid
A square pyramid.
It has a four sided square base and four other triangular sides reaching up to an apex. It is a pentahedron. If the four triangles are equilateral, it is known as a Johnson solid, and six of the pyramids will fit together to make an exact cube. If the four triangles are not equilateral, then they are isosceles.
You can make square pyramid.
Faces on solid figures are like when you look at a square you see a flat wall type surface.
Isosceles TetrahedronA solid with four faces is a tetrahedron. Each of the faces is a triangle. If all the triangles are congruent, you have an isosceles tetrahedron.
square base pyramid and a triangular base pyramid
A square pyramid.
It has a four sided square base and four other triangular sides reaching up to an apex. It is a pentahedron. If the four triangles are equilateral, it is known as a Johnson solid, and six of the pyramids will fit together to make an exact cube. If the four triangles are not equilateral, then they are isosceles.
3 dimensional figures with triangular sides? Prisms and Pyramids 2 dimensional figures that can be divided into traingles? Any n-gon with n > 3 can be divided into n-2 triangles.
You can make square pyramid.
A square-based pyramid
rectangle
sphere
Faces on solid figures are like when you look at a square you see a flat wall type surface.
square
Its name is called a square based pyramid.