Sam and Nathan prisms

To find the number of edges, we did number of side on the base times 3. To find the number of vertices, we did the number of sides on the base times 2. we could do this for an octagonal prism. The number of sides on the base would be eight, the number of edges would be twenty four because 8 times 3 equals 24 and the number of vertices is 16 because 8 x 2 = 16.