Section 2.3: Biconditionals & Definitions
The Biconditional
Got It? #1: Write the converse of the following true
conditional:
“If two angles have equal measures, then the angles
are congruent.” If it is true, then write the
biconditional!
Converse:
Biconditional:
Got It? #2: Write the two conditional statements
(p & q) of the following two conditionals:
“Two numbers are reciprocals if and only if their
product is 1.”
p:
q:
Got It? #3: Is this definition of a straight angle
reversible? If yes, write it as a true biconditional.
“A straight angle is an angle that measures 180.”
Biconditional:
A Good Definition?
Problem #4: See page 107.
Got It? #4: (a) Is the following a good definition?
“A square is a figure with four right angles.”
Rewrite it as a good definition.
HW: pg. 108-111 #7-11, 13-17, 19-27, 32-34, 42