Basic geometry concepts and
definition
·
Geometry: it
is the area of knowledge that studies the studies the elements and operations: used
points, lines, shapes… and come from ancient Greece.
·
Point:
two lines that are cut.
·
Line: is a
succession of point.
·
Ray: is a line
that starts at the end point and never ends.
·
End point: it
is the end point of a segment.
·
Mid-point: it
is de mid-point that is in the center of the line.
·
Line segment: it is one line which two points.
·
Straight line: two points that follow the same direction.
·
Plane:
double dimension.
·
Length:
the measure of the end the beginning of things.
·
Freehand:
draw without instrument.
·
Technical drawing: drawing with the aid of instruments.
·
Compass:
used to make circles and to measure.
·
Protractor: used to measure the angles.
·
Set squares: cartabón: 45 grades and escuadra 60 or 30 grades. Materials for
practice draw.
·
Eraser:
instrument for remover.
·
Marker: is a pen having red tips.
·
Ruler:
instrument used to draw straight line.
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