triangle - it is planar
If it is a pyramid, then the base shape is a SQURE. If it is a tetrahedron, then the base shape is a triangle.
The answer is no. A square pyramid can not have all triangle faces because the base of this particular pyramid would be a square.
A trapezium or a triangle. If the pyramid is a right pyramid then they would both be isosceles.
One side of a square would be untouched with only 3 triangle faces attached to it. To make an entire closed shape, it would need another part or some 3 dimensional bending would need to take place. A pyramid has 1 square face and 4 triangle faces. A pyramid could also have 4 triangle faces where one triangle substitutes the square face.
Depending on the inclination of the plane used for the cross-section, it could be a square, rectangle, trapezium, triangle.
If it is a pyramid, then the base shape is a SQURE. If it is a tetrahedron, then the base shape is a triangle.
The answer is no. A square pyramid can not have all triangle faces because the base of this particular pyramid would be a square.
No. A 3D triangle would be a triangular based pyramid.
A pyramid with a triangle as base is considered as a tetrahedron. It is a three dimensional polyhedron with 4 equilateral triangles as its sides. If one would look at the word tetrahedron, it literally means "with four planes".
a pyramid, in the sense that most people think of has a square base, with 4 triangle 'sides', which would be 5 faces. A regular tetrahedron has 4 equilateral triangles as faces.
A pyramid can have 4 or more faces. A pyramid, with a n-sided polygon as base will have n+1 faces. The polygon with the least number of sides is a triangle and a triangular pyramid (tetrahedron) has 4 faces. A square based pyramid has 5 faces, and so on.
A triangular pyramid A triangular pyramid has four sides - each of which is a triangle. There cannot be a three sided pyramid. If you mean a 3 sided Pyramid with its base being the forth side it would be a Quadrangle. A four-sided triangular solid is also called a tetrahedron, and two interlaced are called a Star Tetrahedron.
A trapezium or a triangle. If the pyramid is a right pyramid then they would both be isosceles.
A tetrahedron is a pyramid with a triangular base. An example would be this kite: http://en.wikipedia.org/wiki/Tetrahedral_kite
One side of a square would be untouched with only 3 triangle faces attached to it. To make an entire closed shape, it would need another part or some 3 dimensional bending would need to take place. A pyramid has 1 square face and 4 triangle faces. A pyramid could also have 4 triangle faces where one triangle substitutes the square face.
the actual answer would be a geometrical triangular pyramid * * * * * which is a tetrahedron.
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