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Geometry Chapter 1
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LINE
contains at least
2 points
PLANE
contains at least
3 noncollinear points
SPACE
contains at least
4 noncoplanar points
POSTULATE 6
through any
2 points
there is exactly
1 line
POSTULATE 7
through any
3 points
there is at least
1 plane
through any
3 noncollinear points
there is exactly
1 plane
POSTULATE 8
if 2 points are in a plane, then the line that contains the points is in that plane
THEOREMS:
If 2 lines intersect, then they intersect in exactly one point
Through a line and a pont not on the line, there is exactly one plane
If two lines intersect, then exactly one plane contains the lines
"RULER POSTULATE"
segments can be measured
"SEGMENT ADDITION POSTULATE"
If B is between A and C, then AB+BC=AC
"PROTRACTOR POSTULATE"
angles can be measured
"ANGLE ADDITION POSTULATE"
if point B lies in the
interior
of angle AOC, then
m
∠AOC+
m
∠BOC=
m
∠AOC.
POSTULATE
statement always accepted as true
THEOREM
an important statement that is proved
Author
Toastedbread
ID
103411
Card Set
Geometry Chapter 1
Description
postulate descriptions
Updated
2011-09-21T22:45:02Z
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