Basic geometry concepts and definitions
Geometry: It's an area of knowledge wich studies any elements and operations on/in the plane such as point.
Greek: Geo is metry is measurement.
Point: In geometry a point can be defined as place or location were two lines intersect. A point has not dimensions, no height and no width.
Line: A one-dimensionalobject formedof infinite points. It has not end and continues on forever in an plane.
Ray: A line wich begins at a particular point (called the endpoint) and extendsendlessly in one direction.
Mindpoint: Is the point that is halfway beetween the endpoints of the line segment.
Line segment: It's a line with two endpoints.
Length: Measuremet of something from end to end.
Freehand: Draw by hand without guiding instruments, measurements.
Important definition about circles
Circle: Set of point at the same distance (equidistance) to a point called center (the line).
Circuference: It's the full length of a circle, the complete distance around a circle.
Center: It's the point equidistant to any of the points on a circle.
Radius: It's the length of a line segment from the center to perimetre.
Diameter: A line segment that passes through the center and conects two points of a circle.
