125 according to Cayley's formula for counting spanning trees.
For a complete graph Kn,
t(kn) = nn-2
where n is the number of vertices.
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The maximum current that can be drawn from a voltage source is dependent on the impedance of that source, the impedance of the connections to the source, and the energy available from that source.
The horse drawn reaper.
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A CEW pipe stands for a cold drawn electrically wielded pipe. Pipes can be made in a number of ways. One such method is to make pipes from sheet steel. The sheet is cut to the required width and rolled along the length. The ends are to be joined so that is forms a pipe. When they are welded using resistance then they are called ERW pipes and when they are electrically welded they are cold drawn electrically welded pipes or CEW pipes.
No of spanning trees in a complete graph Kn is given by n^(n-2) so for 5 labelled vertices no of spanning trees 125
Three fewer than the total number of vertices.
In a polygon with 17 sides, a diagonal can be drawn from a fixed vertex to any of the other non-adjacent vertices. From one vertex, there are 14 other vertices (17 total vertices - 1 fixed vertex - 2 adjacent vertices) to which diagonals can be drawn. Each diagonal creates a triangle with the fixed vertex and two of the vertices connected by the diagonal. Therefore, the number of triangles that can be formed is equal to the number of diagonals, which is 14.
N-2 according to yahoo answers
A regular octagon has 8 sides and 8 vertices. To determine the number of vertical lines that can be drawn through its vertices, we consider the symmetry of the shape. In a regular octagon, there are 2 vertical lines of symmetry that can be drawn through pairs of opposite vertices. Therefore, there are 2 vertical lines in a regular octagon.
Suppose a polygon has n vertices (and sides).From each vertex, a diagonal can be drawn to all vertices, excluding itself and the two adjacent vertices. So n-3 diagonals can be drawn from each vertex.Multiplying by the full complement of n vertices gives n(n-3). However, as things stand we have counted each diagonal twice: once at both ends. Dividing by two gives the actual number of diagonals.number of diagonals = n(n-3)/2
Suppose a polygon has n vertices (and sides). From each vertex, a diagonal can be drawn to all vertices, excluding itself and the two adjacent vertices. So n-3 diagonals can be drawn from each vertex. Multiplying by the full complement of n vertices gives n(n-3). However, as things stand we have counted each diagonal twice: once at both ends. Dividing by two gives the actual number of diagonals. number of diagonals = n(n-3)/2
In a 100-sided polygon, if diagonals are drawn from one vertex, they connect to all non-adjacent vertices. A vertex connects to 97 other vertices (100 total vertices minus the 1 vertex itself and the 2 adjacent vertices). The number of triangles formed with the diagonals from that vertex is given by the formula for combinations, specifically ( \binom{97}{2} ), which equals 4,656 triangles.
The line is called a diagonal if it is drawn between two nonadjacent angles.
In an octagon, each vertex can connect to other vertices except itself and its two adjacent vertices. Since there are 8 vertices in total, a vertex can connect to (8 - 3 = 5) other vertices to form diagonals. Therefore, from each vertex of an octagon, 5 diagonals can be drawn.
If between two adjacent vertices then in 2-dimensions it is a side, in 3-d and edge. If between non-adjacent vertices, a diagonal.
120