Ch2 Flashcards
Hypothesis
P
Conclusion
Q
If not P then not Q
Converse
If not Q then not P
Contrapositive
Means not
~
If A=B,then A+C=B+C
+ prop=
if A=B, then A-C=B-C
- prop =
if A=B, then AxC=BxC
x prop =
ifA=B , then C cant = 0, the A/C=B/C
divide prop =
if X+Y=8 and Y=2, then X+2=8
subst
X(A+B)AX+BX
dist
=a
something =s itself
ref
ifA=B then B=A
MUST be an if then statement
sym
if A=B and B=C, then A=C
a train of =s
trans
seg+seg= whole seg
seg+
angle+angle= whole angle
anlge+
angle=angle
vert angles are congruent
if angle 1 comp angle 2, angle 3 comp angle 2, then angle 1 is congruent to angle 3
comps of the same angle or congruent angles are congruent
if angle 1 supp angle 2 and angle 3 supp angle 2, then angle 1 ic congruent to angle 3
supps of the same angle or congruent angles are congruent
if perpendicular –> then angle congruent angle
perpindicular lines form congruent adj. angles
if angle congruent angle –> then perpendicular
congruent adj. angles form perpendicular lines
midpoint, then seg=seg
def of midpt
if seg bis, the seg=seg
deef of seg bis
if perpendicular, then angle= 90 or is right
def of perpendicular
if angle bisector, then angle=angle
def of angle bis
if comp, then angle+angle= 90
def of comp
if rt angle, then angle=90
def of right anlge
if supp, then angle+angle=180
def of supp
angle 1 + angle 2= 180
def of linear pair
An if then statement
Conditional
if GH are perpendicular to EF, then angle 1 comps angle 2
if the exterior sides of 2 adj angles are perpendicular, then the angles are comp
