A triangle if it is a triangular based pyramid
a pyramid where each face is the shape of a triangle
a triangle
The height of each lateral face of an unspecified object is unknowable.
A triangular pyramid is a pyramid that has 4 faces where each face is a triangle. Just type it in on www.google.com/images
A tetrahedron is an example of a triangular pyramid. Every face is a triangle, and each face touches every other face on one edge.
it has 4 faces and each face is a triangle.
the answer is 120
A+ BCD Roxy(;
The only pyramid with a square base that has equilateral faces, is one where the diagonal of the base is exactly twice as long as the pyramid is high.
4*30 = 120 mm2
ACD