Question

which of the following has faces that are pentagons?
a. octahedron
b. icosahedron
c. dodecahedron
d. hexahedron

Explanation:

Step1: Recall the properties of each polyhedron

• An octahedron has 8 triangular faces.
• An icosahedron has 20 triangular faces.
• A dodecahedron has 12 pentagonal faces.
• A hexahedron (cube) has 6 square faces.

Since we are looking for the polyhedron with pentagonal faces, the dodecahedron is the correct answer.

Answer:

C. Dodecahedron