A pyramid with a triangular base is a triangle-based pyramid. A tetrahedron is a triangular pyramid with all equilateral triangle faces. A pyramid with a square base is a square-based pyramid.

Father and daughter archaeologists Miles and Nora Holden (Denis O’Hare and Ashley Hinshaw) discover and excavate a unique triangular-based pyramid in the Egyptian desert that predates the ...

The Discovery That Changed Everything For centuries, the Great Pyramid stood as the last remaining wonder of the ancient world, with its four triangular sides symbolizing the simplicity and ...

Human action recognition based on the depth maps is an important yet challenging task. In this paper, a new framework based on the 3D motion trail model (3DMTM) and Pyramid Histograms of Oriented ...