point of a shape or object
vertices I think
the vertext
21
(180 - 36) / 2 = 72
In two dimensions 6 triangles meet at a vertex. In 3-dimensions any number of triangles (greater than 2) can meet at a vertext - a pyramid with the base in the shape of an n-gon will have n triangles meeting at its apex.
You should use a special device for measuring angles - a protractor. With a ruler, it is much more complicated, but still possible: you can mark two points on the angle, one on each side; measure the distance from the vertext of the angle to those points; measure the distance between the points; then use the Law of Cosines to calculate the angle.
Suppose all the pentagon have two adjacent angles of 45 degrees, and three right angles. Create a line of pentagons with their bases aligned and their "odd" vertext facing upwards. Next create a second line of pentagons, inverted so as to meet the first line apex-to-apex. The gaps between these will be rectangular (square, in fact). It is thus possible to obtain a tessellation. No tesselation is possible with regular pentagons and rectangles.
In geometry, a vertex is a point where two or more line segments, lines, or rays meet to form an angle. It is the common endpoint of these geometric elements. Vertices are crucial in defining the shape and structure of geometric figures such as polygons, polyhedra, and graphs. The plural form of vertex is vertices.
There are countless iPod games, and therefore too many to find all of them or fit into a WikiAnswers question. but it comes with 3 games! maze,some card game like solitare,and vertext!but yours might be different! i have the 5th generation ipod nano!