Question

identify the 3d figure. cone pentagonal pyramid triangular prism triangular pyramid

Explanation:

To identify the 3D figure, we analyze the options:

• A cone has a circular base and a curved surface, which doesn't match the figure.
• A triangular prism has two triangular bases and three rectangular faces, not matching the given figure.
• A triangular pyramid (tetrahedron) has a triangular base and three triangular faces, but the given figure has a pentagonal base (since the base has 5 sides) and 5 triangular faces meeting at a vertex.
• A pentagonal pyramid has a pentagonal base (5 - sided) and 5 triangular lateral faces that meet at an apex, which matches the figure shown.

Answer:

Pentagonal Pyramid