Assuming you mean a tetrahedron, the volume is 1/3*area of base*height cubic units.
Definite shape and volume is a state that defines solid.
It has a fixed shape and volume
triangular prism or triangular pyramid
Yes it is a 3 dimensional shape
any solid has both shape and volume
A solid has a definite shape, and a definite volume.
triangular prism
a triangular prism
Gas has an indefinite shape or volume. Liquid has a fixed shape and volume. Solid has a fixed shape and volume.
The solid shape that has one square face and four triangular faces is called a pyramid. If you were to have a shape that had four triangular faces and no square face, it would be called a triangular pyramid.
Solid.
The solid phase of matter has a definite volume and shape. Gas form has neither volume, nor shape, and liquid form has volume, but conforms to the shape of the container it is put in.