There are some interesting relationships between the number of faces (F), edges (E), and vertices (V) in all Platonic solids. For example, the number of edges is always greater than the number of faces, or E>F. Another example: The number of edges is always less than the sum of the number of faces and the number of vertices, or E

The Length of wall in the plan is 3.6 inches

Step-by-step explanation:

Given as :

2.6 inches = 13 feet

The Length of the wall is 18 feet

Now,

∵  13 feet is equivalent to 2.6 inches

So , 1 feet is equivalent to  inches

∴    18 feet is equivalent to × 18    inches

Or, 18 feet is equivalent to = 3.6 inches

Hence The Length of wall in the plan is 3.6 inches Answer