A circle of any radius can be constructed with the help of a:

1. ruler

2. divider

3. compass

4. protractor

The instrument in a geometry box having the shape of a semicircle is:

1. ruler

2. divider

3. compass

4. protractor

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