Which of the following terms correctly describe the object below? Check all that apply. A. Prism B. Triangle C. Polygon D. Polyhedron E. Pyramid F. Square
The Correct Answer and Explanation is:
Term Descriptions:
A. Prism
A prism is a solid geometric figure with two identical ends (called bases) that are parallel and connected by rectangular faces. Examples: rectangular prism (box), triangular prism, hexagonal prism.
B. Triangle
A triangle is a 2D shape with three sides and three angles. It is not a 3D object, so this term would only apply if the figure is flat and triangular.
C. Polygon
A polygon is a 2D closed figure with straight sides. Examples include triangles, squares, pentagons. If the object is 3D, it is not a polygon, but its faces might be polygons.
D. Polyhedron
A polyhedron is a 3D solid whose faces are all polygons. Examples: cubes, pyramids, prisms. If the object is 3D with flat faces, this is the correct term.
E. Pyramid
A pyramid is a polyhedron with a polygonal base and triangular faces that meet at a point (apex). If the object has this structure, it is a pyramid.
F. Square
A square is a 2D shape with four equal sides and four right angles. If the object is 3D, a square might be one of its faces, but the object itself is not a square.
Example of Correct Application:
If the object is a square pyramid (square base, four triangular sides):
- ✅ D. Polyhedron
- ✅ E. Pyramid
- ❌ A. Prism (not a prism)
- ❌ B. Triangle (it’s 3D)
- ❌ C. Polygon (object is 3D)
- ❌ F. Square (only one face is a square)
