Question

determine whether the solid is a polyhedron. then identify the solid. the figure is select choice. it is a select choice.

Explanation:

Step1: Recall polyhedron definition

A polyhedron is a solid with flat polygonal faces, straight edges, and vertices.

Step2: Analyze the cone

A cone has a circular base (a curved face, not a polygon) and a curved lateral surface. So it does not meet the polyhedron's face requirement. Then, identify the solid: the figure is a cone.

Answer:

The figure is not a polyhedron. It is a cone.