Vocabulary

Basic geometry

Geometry:  is the area of ​​knowledge that studies elements and operations.

Point: it  is a place or location where two lines intersect.

Line: a dimension of the object formed by infinite points. 

Ray: The line starts at a particular point. 

End point: is a point at which a line segment or lightning ends or starts. 

Point of attention: the point is between the end points of the line segment. 

Line Segment: is the line with two points. 

Straight line: the points follow the same direction. 

Plane: Cut two parallel lines and two others. 

Length: it is the measure of something from end to end 

Geometry drawing

Freehand: Draw without instruments. 

Line / Technical drawing: Draw made with help instruments. 

Compass:  is an instrument to draw circles and arcs.

Protactor:  is an instrument that measures or draws angles.

Set squares: there are two triangles. They are special rules. 

45th triangle: Is that placed next to two formed a square? 

Triangle 30º / 60º:  used to draw parallel lines.

Draft:  used to give something away

Marker: It is open to whose fibers pressed to write. 

Ruler: Used to draw a straight line. Its an instrument. 

Circle: set of  point at the same distance.

Circunference: When the circle it's full,it's line around the circle.

Center: It's the point that is in the same distance to all circle.

Radius: It's half of a linesegment from center to perimeter.

Diameter: It's a linesegment that pass two the center.

Chord: It's a line that's conect two points but not pass to the center.

Arc: Segment of a circle.

Arrow: It's a perpendicular line from the middle to arc.

Tanged: It's a line that cut in only point the circle.