The number of perpendicular bisectors that can be drawn of a given line segment is:

1. 0

2. 1

3. 2

4. infinitely many

The number of lines of symmetry in a picture of a divider is:

1. 0

2. 1

3. 2

4. 4

The number of lines of symmetry in a ruler is:

1. 0

2. 1

3. 2

4. 4

The number of lines of symmetry in a 30° - 60° - 90° set square is:

1. 0

2. 1

3. 2

4. 3