Determine whether each statement is true or false. If it is false, provide a counterexample.
1.If a quadrilateral is equilateral, then it is equiangular.
2. If a quadrilateral is equiangular, then it is equilateral.
3. Every isosceles triangle has at least one line of symmetry.
4. Every equilateral triangle has exactly three lines of symmetry.
5. If two angles are not congruent, then the two angles are not right.