Question

1. practice: making mental images and drawing inferences think about the shape of pyramids to answer the questions. 1. why is a triangular pyramid a special kind of pyramid? 2. how are oblique pyramids and right pyramids different? 17) practice: making mental images and organizing information fill in the blanks in the venn - diagram. building polyhedrons from a pile of shapes prisms formed by polygons to the bases. both solids formed by a pile of stacked pyramids formed by polygons to the base (except for the vertex).

Explanation:

1. A triangular pyramid is special because all of its faces (including the base) are triangles. Most pyramids have a non - triangular base.
2. In a right pyramid, the apex (top point) is directly above the centroid of the base, so the lateral edges are equal in length and the lateral faces are isosceles triangles. In an oblique pyramid, the apex is not directly above the centroid of the base, and the lateral edges and faces are not symmetric in the same way. For the Venn - diagram part: Prisms have faces that are parallel to the bases. Pyramids have faces that converge to a single vertex (except for the base).

Answer:

1. All of its faces are triangles.
2. In a right pyramid, the apex is directly above the centroid of the base; in an oblique pyramid, it is not.

Prisms: Faces are parallel
Pyramids: Faces converge