If you have a perfect square that is equal to 1 acre, what is the length of the sides and how do you do it? One acre is 43,560 square feet so a square, with area one acre would have a side if length the square root of 43,560 or approximately 208.71 feet. That is. 208.71feet 208.71feet = 43559.86 square feet. Penny.
A triangular pyramid has a 4 vertices. There are 4 vertices on a triangular pyramid.. A triangular pyramid is a pyramid made up of 4 triangles. The vertices are the points where the edges of the triangles meet. They are sometimes called corner points. There are 4 faces, therefore, there are 4 vertices. There are 6 edges, and if they are all equal in length, it would be called a tetrahedron. Source(s): http://wiki.answers.com/Q/How_many_verti...
Quick Answer. A pentagonal pyramid is characterized by  six faces, six vertices and 10 edges. This three-dimensional polyhedron is a type of pyramid containing five triangular lateral faces and one pentagonal face, which is the base of the pyramid.