geometry quiz sec 2.5-2.8
reflexive property
(1 thing) something equals itself
symmetric properyy
(2 things) ex. if <j = <k then <k = <j
transitive or substitution property
(3 things) if x=y and y=z then x=z
post 2.3
a line contains at least 2 points
post 2.4
a plane contains at least 3 non collinear points
postulate
a statement accepted as true without proof
theorem
a statement that has been proven
angle addition postulate
adding 2 adjacent angles together to get a larger angle
segment addition
adding 2 segments on a line and forming a larger segment
supplement theorem
if 2 angles form a linear pair or add up to 180 they are supplementary
post 2.5
if 2 points lie In a plane then the entire line containing those points also lie in the plane
complement theorem
if the non common sides of 2 adjacent angles form a right angle then the angles are complementary angles
postulate 2.1
through any 2 points there is exactly 1 line
postulate 2.2
through any 3 non- collinear points there is exactly 1 plane