2023 AMC 10A Problems/Problem 18: Difference between revisions
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A rhombic dodecahedron is a solid with <math>12</math> congruent rhombus faces. At every vertex, <math>3</math> or <math>4</math> edges meet, depending on the vertex. How many vertices have exactly <math>3</math> edges meet? | |||
<math>\textbf{(A) }5\qquad\textbf{(B) }6\qquad\textbf{(C) }7\qquad\textbf{(D) }8\qquad\textbf{(E) }9</math> | |||
Revision as of 16:51, 9 November 2023
A rhombic dodecahedron is a solid with 
congruent rhombus faces. At every vertex, 
or 
edges meet, depending on the vertex. How many vertices have exactly edges meet?
