Postulates, Theorems, Properties Flashcards
Postulate 2
Segment addition postulate
If B is between A and C, then AB + BC= AC
If AB -BC =AC then B is between A and C
Postulate 3
Protractor postulate
The measure of
Postulate four
Angle addition postulate
If P is in the interior of
Postulate 5
Through any two points exists exactly one line
Postulate 6
A line contains at least two points
Postulate 7
If two lines intersect, then their intersection is exactly one point
Postulate 8
Through any three noncollinear points there exists one plane
Postulate 9
A plane contains at Leary three noncollinear points
Postulate 10
If two points lie in a plane then the line containing them lies in the plane
Postulate 11
If two planes intersect then their intersection is a line
Addition property
If A=B then A+C= B+C
Subtraction property
A=B then A-C = B-C
Multiplication property
If A=B then AC=BC
Division property
If A=B and c doesn’t = 0 (undefined) then a/c = b/c
Substitution
If A=B then A can be substituted for B