- A9 edges, a triangular prism
- B8 edges, a cube
- C12 edges, a cuboid
- D6 edges, a tetrahedron
Step-by-Step Solution
5 + 6 - E = 2 gives E = 9. A solid with 5 faces, 6 vertices, 9 edges is a triangular prism.
Answer: A) 9 edges, a triangular prism
A solid has 5 faces, 6 vertices and some edges. Use Euler's formula F + V - E = 2 to find the number of edges.
Then identify which solid it could be.
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