Glossary

1.) Arris: the segment line that is common between two faces of a polyhedron or polygon. Arris of a cube 2.) Angle: the space between two line segments. 3.) Polynomial: is an algebraic expression consisting of variables and constants

4.) Radium: the line that has its origin in one point of the circumference and ends in the center.

5.) Right angle: an angle which measure is exactly 90 degrees.

6.) Rope: a line between two points of a circumference which never touch the center.

7.) Secant: a line that crosses a curve by two points.

8.) Straight Angle**:** An Angle of 180 degrees . 9.) Diameter: the largest line inside a circumference that cross the center. 10.) Vector: set of oriented line segments equivalent to a given line segment. Any line according to the concept can be a representation of a vector