ANGLES
CONDITIONALS
LINES
RANDOM
ANGLES w/ lines
100
an angle that measures greater than 0 and less than 90
acute angle
100
the part of a conditional statement following the word "if"
hypothesis
100
Lines that intersect at 90 degree angles
perpendicular lines
100
A statement that has been proven
theorem
100
for two lines intersected by a transversal, a pair of angles that lie on opposite sides of the transversal and outside the other two lines
alternate exterior angles
200
an angle that measures greater than 90 and less than 180
obtuse angle
200
the part of a conditional statement following the word "then"
conclusion
200
Lines in the same plane that do not intersect
parallel lines
200
Statements that have the same truth value
logically equivalent statements
200
for two lines intersected by a transversal, a pair of nonadjacent angles that lie on opposite sides of the transversal and between the other two lines
alternate interior angles
300
an angle that measures 90
right angle
300
A statement that can be written in the form "if p, then q" where p is the hypothesis and q is the conclusion.
conditional statement
300
Lines that are no coplanar
skew lines
300
The process of reasoning that a rule or statement is true because specific cases are true
inductive reasoning
300
for two lines intersected by a transversal, a pair of angles that lie on the same side of the transversal and between the two lines
same-side interior angles
400
an angle formed by two opposite rays that measures 180
straight angle
400
The statement formed by both exchanging and negating the hypothesis and conclusion of a conditional statement
contrapositive
400
A line that intersects two coplanar lines at two different points
transversal
400
an example that proves that a conjecture or statement is false
counterexample
400
A ray that divides an angle into two congruent angles
angle bisector
500
the nonadjacent angles formed by two intersecting lines
vertical angles
500
A statement that can be written in the form "p if and only if q"
biconditional statement
500
The length of the perpendicular segment from the point to the line
distance from a point to a line
500
the process of using logic to draw conclusions
deductive reasoning
500
A pair of adjacent angles whose noncommon sides are opposite rays
linear pair
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