Definitions and Biconditional Statements

1
Definitions and Biconditional Statements

• Section 2.2

2
Vocab
3
Practice

• Write the biconditional as a conditional
  statement and its converse. Then decide if the
  biconditional is true or false.
• 1. Three lines are coplanar if and only if they
  lie in the same plane.
• 2. x 3 if and only if x2 9

4
Practice

• Write the converse and the biconditional.
• 3. If two points lie in a plane, then the line
  containing them lies in the plane.