key points of lines and angles
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hello
AXIOMS
the basic facts which are taken for granted whithout any proof
THEOREMS
they are prooved with the help of axioms
POINT
they are represented by fine dot
ANGLES
an angle is the union of two non collinear rays with a common initial point
INCIDENCE AXIOMS
1. a line contains infinitely many points
2.through a given point there pass infinitely many points
3.if there are two points only one line can pass through it
INTERSECTING LINES
two lines are said to be intersecting line if they hav a common point called point of intersection
PARALLEL LINES
two lines are said to be parallel if they donot hav acommon point that is they donot intersect
COLLINEAR POINTS
three or more points are said to be collinear if they lie in a same line
CONCURRENT LINES
three or more lines are said to be concurrent if there is a point which lies on them
HOPE IT HELPS :)
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