Question

If a solid consists of three lateral faces and a base that are congruent isosceles triangles, what type of solid is it? A. octahedron B. triangular pyramid C. right triangular pyramid D. regular rectangular prism

Answer 1

B- Triangular Pyramid

Explanation:

edge 2021

Answer 2

A pyramid is a polyhedron where the base is a polygon and whose lateral faces are all triangles. So a triangular pyramid is a pyramid that has a triangular base. The definition of a solid tells us that this is a three-dimensional shape. The figure below shows a triangular pyramid, so you can see that:

• This triangular pyramid has 4 faces
• The solid has 3 side faces and all are triangles
• The base is also a triangle
• This pyramid has 4 vertices
• It has 6 edges