ART VOCABULARY

BASIC GEOMETRY CONCEPTS:
Geometry: It´s the area of the movement.
Point: In the geometry, a point is defined  in two lines that are cut.
Line: Is a succession object formed of infinite points.
Ray: Is the line that starts at a particular point.
End Point: Is a point at wich a ray ends or satrst.
Midpoint: It´s the point that is halfway between the endpoints of the line segment.
Line Segment: It´s a line with two endpoints.
Straight Line: A line whose points follow the same direction.
Plane: Space limited by starights.
Lenght: Measurment of something from end to end.
GEOMETRY DRAWING AND SUPPLIES CONCEPTS AND DEFINITIONS:
Freehand: Draw by hand.
Line/Techincal Drawing: It´s a drawing made with tha help of supplies.
Compass: It´s a tool for drawings circles and arcs.
Protactor: An semicircular instrument, it sereves for measure of angles.
Set squares: It´s a material of draw.
Eraser: It´s  use to erase.
Ruler: Is the instrument that serves to make lines.
IMPORTANT DEFINITION ABOUT C IRCLES:
Circle: Set of points at the same distance to center.
Circunference: It is the full laugh of a circle, it is the line around circle.
Center: It is the point equidistant to any of the points on a circle.
Radius: It is lenght of a line segment from center to its perimeter.
Diameter: It is a line segment pass to the center and conects two points of the circles.
Chord: Is a line that conect two points but not throught to the center.
Arc: Segment of a circle (arch).
Arrow: Is the perpendicular line from middle of chord.
Tagment: It is a line that cut (touch) in only one point of a circle.
DEFINITIONS OF THE POLIGONS:
Star polygons: It is a particular polygon case with a star from or shape.
Inscribedd ploygons: They are polygons placed inside circles so all the vertices of the polygon are placed on the circle.
Circumscribed: They are polygons sorrownding a circle begin, 7 sides tangent.
POLYGONS CLASIFICATION:
Convex polygon: Any line drawn throught the polygon it´s boundary exactly twice, one line segment with end points pass two points of the sapes.
Non convex polygon: There exist a line segment between two bander points that passes outside the polygon:

• Equiangular: All their corner, angle or vertices are equal.
• Equilateral: All edges or sides are of the same length.
• Regular: All their vertices, angles and sides are equal.
• Irregular: Show different angles and lengths for their sides.

 TRIANGLES:
Triangle: It is a flat figure with 3 sides and angles.