Chapter 4 - Congruent Triangles - 4-2 Triangle Congruence by SSS and SAS - Practice and Problem-Solving Exercises - Page 233: 44

If $x^2=9$, then x=3 Converse: False

In order to create a converse, switch the order of the two statements provided. This gives: If $x^2=9$, then x=3 We see that the converse is false by using a counterexample. $x=-3$ would satisfy the equation $x^2=9$, but it would not satisfy the equation x=3.