Which of the following angles cannot be constructed using ruler and compass?

1. 15°

2. 45°

3. 75°

4. 85°

The number of perpendiculars that can be drawn to a line from a point not on it is:

1. 1

2. 2

3. 4

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 picture of a compass is:

1. 0

2. 1

3. 2

4. none of these