Math Finals Flashcards
(24 cards)
Conjunction
True when BOTH are true
Negation
Opposite
Disjunction
True when AT LEAST ONE is true
Exclusive or
if EXACTLY ONE is true
DeMorgan’s Law
- ~(p ^ q) –> ~p v ~q
2. ~(p v q) –> ~p ^ ~q
Tautology
Compound statement that is ALWAYS TRUE
Conditional
P –> Q
Inverse
~p –> ~q
Converse
q –> p
Contra positive
~q –> ~p
Biconditional
BOTH HAVE TO BE THE SAME
Identity
p ^ T = p
p v F = p
Domination
p v T = T
p ^ F = F
Idenpotent
p v p= p
p ^ p= p
Diagonals in a n- gon
n(n-3)/ 2
Sum of interior angles in a n-gon
180(n-3)
Diagonals containing Pk
n-3
Proving a quadrilateral is a parallelogram
- Both pairs of opposite sides are parallel.
- Both pairs of opposite angles are congruent.
- Diagonals bisect each other.
- One pair of opposite pairs are congruent and parallel.
- Both pairs of opposite sides are congruent.
Diagonals bisect each other
Parallelogram
Rhombus
Rectangle
Square
Diagonals are perpendicular
Rhombus
Square
Diagonals are congruent
Rectangle
Square
Isosceles trapezoid
Diagonals bisect the angles
Rhombus
Square
Midline Thm for Triangle
The segment is PARALLEL TO THE THIRD SIDE and HALF THE MEASURE OF THE THIRD SIDE
The Midline Thm for Trapezoid
the median of a trapezoid is PARALLEL TO BOTH BASED and HALF THE MEASURE OF THE BASES’ SUM
