a tetrahedron is a geometric solid that has 4 sides, all trianglular - it's like a pyramid with a triaglular base.
A pyramid
A solid with three sides is a cylinder.
A pyramid with a triangular base. The faces are 4 equilateral triangles.
A Square Pyramid.
A tetrahedron (triangular pyramid).
a tetrahedron is a geometric solid that has 4 sides, all trianglular - it's like a pyramid with a triaglular base.
A pyramid
A Tetrahedron has four triangular sides.
A rhombus (squares are rhombuses).
A solid with three sides is a cylinder.
A pyramid with a triangular base. The faces are 4 equilateral triangles.
A basic pyramid with three sides?
No because it is flat 2d shape with 4 equal sides
A Pyramid is a Geometric Solid whose sides are Triangles, that meet at its Apex. Pyramids can have Square bases (and thus 4 sides), or Triangular bases (and 3 sides).
Pyramid. Work: 4 sides (that you usually see) are triangles, the base (bottom) is a square
A tetrahedron.